20123957560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:390

約数の個数: 256

約数和(自身を含む): 54054604800

約数和(自身を除く): 33930647240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 83, 97, 113, 140, 158, 166, 194, 226, 280, 316, 332, 388, 395, 415, 452, 485, 553, 565, 581, 632, 664, 679, 776, 790, 791, 830, 904, 970, 1106, 1130, 1162, 1358, 1580, 1582, 1660, 1940, 2212, 2260, 2324, 2716, 2765, 2905, 3160, 3164, 3320, 3395, 3880, 3955, 4424, 4520, 4648, 5432, 5530, 5810, 6328, 6557, 6790, 7663, 7910, 8051, 8927, 9379, 10961, 11060, 11620, 13114, 13580, 15326, 15820, 16102, 17854, 18758, 21922, 22120, 23240, 26228, 27160, 30652, 31640, 32204, 32785, 35708, 37516, 38315, 40255, 43844, 44635, 45899, 46895, 52456, 53641, 54805, 56357, 61304, 62489, 64408, 65570, 65653, 71416, 75032, 76630, 76727, 80510, 87688, 89270, 91798, 93790, 107282, 109610, 112714, 124978, 131140, 131306, 153260, 153454, 161020, 178540, 183596, 187580, 214564, 219220, 225428, 229495, 249956, 262280, 262612, 268205, 281785, 306520, 306908, 312445, 322040, 328265, 357080, 367192, 375160, 383635, 429128, 438440, 450856, 458990, 499912, 525224, 536410, 563570, 613816, 624890, 636029, 656530, 740941, 767270, 865919, 909763, 917980, 1072820, 1127140, 1249780, 1272058, 1313060, 1481882, 1534540, 1731838, 1819526, 1835960, 2145640, 2254280, 2499560, 2544116, 2626120, 2963764, 3069080, 3180145, 3463676, 3639052, 3704705, 4329595, 4452203, 4548815, 5088232, 5186587, 5927528, 6061433, 6360290, 6368341, 6927352, 7278104, 7409410, 8659190, 8904406, 9097630, 10373174, 12122866, 12720580, 12736682, 14818820, 17318380, 17808812, 18195260, 20746348, 22261015, 24245732, 25441160, 25473364, 25932935, 29637640, 30307165, 31841705, 34636760, 35617624, 36390520, 41492696, 44522030, 48491464, 50946728, 51865870, 60614330, 63683410, 71871277, 89044060, 103731740, 121228660, 127366820, 143742554, 178088120, 207463480, 242457320, 254733640, 287485108, 359356385, 503098939, 574970216, 718712770, 1006197878, 1437425540, 2012395756, 2515494695, 2874851080, 4024791512, 5030989390, 10061978780, 20123957560]

約数ペア:

[(1, 20123957560), (2, 10061978780), (4, 5030989390), (5, 4024791512), (7, 2874851080), (8, 2515494695), (10, 2012395756), (14, 1437425540), (20, 1006197878), (28, 718712770), (35, 574970216), (40, 503098939), (56, 359356385), (70, 287485108), (79, 254733640), (83, 242457320), (97, 207463480), (113, 178088120), (140, 143742554), (158, 127366820), (166, 121228660), (194, 103731740), (226, 89044060), (280, 71871277), (316, 63683410), (332, 60614330), (388, 51865870), (395, 50946728), (415, 48491464), (452, 44522030), (485, 41492696), (553, 36390520), (565, 35617624), (581, 34636760), (632, 31841705), (664, 30307165), (679, 29637640), (776, 25932935), (790, 25473364), (791, 25441160), (830, 24245732), (904, 22261015), (970, 20746348), (1106, 18195260), (1130, 17808812), (1162, 17318380), (1358, 14818820), (1580, 12736682), (1582, 12720580), (1660, 12122866), (1940, 10373174), (2212, 9097630), (2260, 8904406), (2324, 8659190), (2716, 7409410), (2765, 7278104), (2905, 6927352), (3160, 6368341), (3164, 6360290), (3320, 6061433), (3395, 5927528), (3880, 5186587), (3955, 5088232), (4424, 4548815), (4520, 4452203), (4648, 4329595), (5432, 3704705), (5530, 3639052), (5810, 3463676), (6328, 3180145), (6557, 3069080), (6790, 2963764), (7663, 2626120), (7910, 2544116), (8051, 2499560), (8927, 2254280), (9379, 2145640), (10961, 1835960), (11060, 1819526), (11620, 1731838), (13114, 1534540), (13580, 1481882), (15326, 1313060), (15820, 1272058), (16102, 1249780), (17854, 1127140), (18758, 1072820), (21922, 917980), (22120, 909763), (23240, 865919), (26228, 767270), (27160, 740941), (30652, 656530), (31640, 636029), (32204, 624890), (32785, 613816), (35708, 563570), (37516, 536410), (38315, 525224), (40255, 499912), (43844, 458990), (44635, 450856), (45899, 438440), (46895, 429128), (52456, 383635), (53641, 375160), (54805, 367192), (56357, 357080), (61304, 328265), (62489, 322040), (64408, 312445), (65570, 306908), (65653, 306520), (71416, 281785), (75032, 268205), (76630, 262612), (76727, 262280), (80510, 249956), (87688, 229495), (89270, 225428), (91798, 219220), (93790, 214564), (107282, 187580), (109610, 183596), (112714, 178540), (124978, 161020), (131140, 153454), (131306, 153260)]