20171890760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{367}}^1\times {\mathrm{967}}^1$

素因数の和:1388

約数の個数: 192

約数和(自身を含む): 54822873600

約数和(自身を除く): 34650982840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 56, 58, 70, 98, 116, 140, 145, 196, 203, 232, 245, 280, 290, 367, 392, 406, 490, 580, 734, 812, 967, 980, 1015, 1160, 1421, 1468, 1624, 1835, 1934, 1960, 2030, 2569, 2842, 2936, 3670, 3868, 4060, 4835, 5138, 5684, 6769, 7105, 7340, 7736, 8120, 9670, 10276, 10643, 11368, 12845, 13538, 14210, 14680, 17983, 19340, 20552, 21286, 25690, 27076, 28043, 28420, 33845, 35966, 38680, 42572, 47383, 51380, 53215, 54152, 56086, 56840, 67690, 71932, 74501, 85144, 89915, 94766, 102760, 106430, 112172, 135380, 140215, 143864, 149002, 179830, 189532, 196301, 212860, 224344, 236915, 270760, 280430, 298004, 354889, 359660, 372505, 379064, 392602, 425720, 473830, 521507, 560860, 596008, 709778, 719320, 745010, 785204, 947660, 981505, 1043014, 1121720, 1374107, 1419556, 1490020, 1570408, 1774445, 1895320, 1963010, 2086028, 2484223, 2607535, 2748214, 2839112, 2980040, 3548890, 3926020, 4172056, 4968446, 5215070, 5496428, 6870535, 7097780, 7852040, 9936892, 10291781, 10430140, 10992856, 12421115, 13741070, 14195560, 17389561, 19873784, 20583562, 20860280, 24842230, 27482140, 34779122, 41167124, 49684460, 51458905, 54964280, 69558244, 72042467, 82334248, 86947805, 99368920, 102917810, 139116488, 144084934, 173895610, 205835620, 288169868, 347791220, 360212335, 411671240, 504297269, 576339736, 695582440, 720424670, 1008594538, 1440849340, 2017189076, 2521486345, 2881698680, 4034378152, 5042972690, 10085945380, 20171890760]

約数ペア:

[(1, 20171890760), (2, 10085945380), (4, 5042972690), (5, 4034378152), (7, 2881698680), (8, 2521486345), (10, 2017189076), (14, 1440849340), (20, 1008594538), (28, 720424670), (29, 695582440), (35, 576339736), (40, 504297269), (49, 411671240), (56, 360212335), (58, 347791220), (70, 288169868), (98, 205835620), (116, 173895610), (140, 144084934), (145, 139116488), (196, 102917810), (203, 99368920), (232, 86947805), (245, 82334248), (280, 72042467), (290, 69558244), (367, 54964280), (392, 51458905), (406, 49684460), (490, 41167124), (580, 34779122), (734, 27482140), (812, 24842230), (967, 20860280), (980, 20583562), (1015, 19873784), (1160, 17389561), (1421, 14195560), (1468, 13741070), (1624, 12421115), (1835, 10992856), (1934, 10430140), (1960, 10291781), (2030, 9936892), (2569, 7852040), (2842, 7097780), (2936, 6870535), (3670, 5496428), (3868, 5215070), (4060, 4968446), (4835, 4172056), (5138, 3926020), (5684, 3548890), (6769, 2980040), (7105, 2839112), (7340, 2748214), (7736, 2607535), (8120, 2484223), (9670, 2086028), (10276, 1963010), (10643, 1895320), (11368, 1774445), (12845, 1570408), (13538, 1490020), (14210, 1419556), (14680, 1374107), (17983, 1121720), (19340, 1043014), (20552, 981505), (21286, 947660), (25690, 785204), (27076, 745010), (28043, 719320), (28420, 709778), (33845, 596008), (35966, 560860), (38680, 521507), (42572, 473830), (47383, 425720), (51380, 392602), (53215, 379064), (54152, 372505), (56086, 359660), (56840, 354889), (67690, 298004), (71932, 280430), (74501, 270760), (85144, 236915), (89915, 224344), (94766, 212860), (102760, 196301), (106430, 189532), (112172, 179830), (135380, 149002), (140215, 143864)]