257450256

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:214

約数の個数: 240

約数和(自身を含む): 863516160

約数和(自身を除く): 606065904

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 53, 56, 61, 63, 72, 79, 84, 106, 112, 122, 126, 144, 158, 159, 168, 183, 212, 237, 244, 252, 316, 318, 336, 366, 371, 424, 427, 474, 477, 488, 504, 549, 553, 632, 636, 711, 732, 742, 848, 854, 948, 954, 976, 1008, 1098, 1106, 1113, 1264, 1272, 1281, 1422, 1464, 1484, 1659, 1708, 1896, 1908, 2196, 2212, 2226, 2544, 2562, 2844, 2928, 2968, 3233, 3318, 3339, 3416, 3792, 3816, 3843, 4187, 4392, 4424, 4452, 4819, 4977, 5124, 5688, 5936, 6466, 6636, 6678, 6832, 7632, 7686, 8374, 8784, 8848, 8904, 9638, 9699, 9954, 10248, 11376, 12561, 12932, 13272, 13356, 14457, 15372, 16748, 17808, 19276, 19398, 19908, 20496, 22631, 25122, 25864, 26544, 26712, 28914, 29097, 29309, 30744, 33496, 33733, 37683, 38552, 38796, 39816, 43371, 45262, 50244, 51728, 53424, 57828, 58194, 58618, 61488, 66992, 67466, 67893, 75366, 77104, 77592, 79632, 86742, 87927, 90524, 100488, 101199, 115656, 116388, 117236, 134932, 135786, 150732, 155184, 173484, 175854, 181048, 200976, 202398, 203679, 231312, 232776, 234472, 255407, 263781, 269864, 271572, 301464, 303597, 346968, 351708, 362096, 404796, 407358, 465552, 468944, 510814, 527562, 539728, 543144, 602928, 607194, 693936, 703416, 766221, 809592, 814716, 1021628, 1055124, 1086288, 1214388, 1406832, 1532442, 1619184, 1629432, 1787849, 2043256, 2110248, 2298663, 2428776, 3064884, 3258864, 3575698, 4086512, 4220496, 4597326, 4857552, 5363547, 6129768, 7151396, 9194652, 10727094, 12259536, 14302792, 16090641, 18389304, 21454188, 28605584, 32181282, 36778608, 42908376, 64362564, 85816752, 128725128, 257450256]

約数ペア:

[(1, 257450256), (2, 128725128), (3, 85816752), (4, 64362564), (6, 42908376), (7, 36778608), (8, 32181282), (9, 28605584), (12, 21454188), (14, 18389304), (16, 16090641), (18, 14302792), (21, 12259536), (24, 10727094), (28, 9194652), (36, 7151396), (42, 6129768), (48, 5363547), (53, 4857552), (56, 4597326), (61, 4220496), (63, 4086512), (72, 3575698), (79, 3258864), (84, 3064884), (106, 2428776), (112, 2298663), (122, 2110248), (126, 2043256), (144, 1787849), (158, 1629432), (159, 1619184), (168, 1532442), (183, 1406832), (212, 1214388), (237, 1086288), (244, 1055124), (252, 1021628), (316, 814716), (318, 809592), (336, 766221), (366, 703416), (371, 693936), (424, 607194), (427, 602928), (474, 543144), (477, 539728), (488, 527562), (504, 510814), (549, 468944), (553, 465552), (632, 407358), (636, 404796), (711, 362096), (732, 351708), (742, 346968), (848, 303597), (854, 301464), (948, 271572), (954, 269864), (976, 263781), (1008, 255407), (1098, 234472), (1106, 232776), (1113, 231312), (1264, 203679), (1272, 202398), (1281, 200976), (1422, 181048), (1464, 175854), (1484, 173484), (1659, 155184), (1708, 150732), (1896, 135786), (1908, 134932), (2196, 117236), (2212, 116388), (2226, 115656), (2544, 101199), (2562, 100488), (2844, 90524), (2928, 87927), (2968, 86742), (3233, 79632), (3318, 77592), (3339, 77104), (3416, 75366), (3792, 67893), (3816, 67466), (3843, 66992), (4187, 61488), (4392, 58618), (4424, 58194), (4452, 57828), (4819, 53424), (4977, 51728), (5124, 50244), (5688, 45262), (5936, 43371), (6466, 39816), (6636, 38796), (6678, 38552), (6832, 37683), (7632, 33733), (7686, 33496), (8374, 30744), (8784, 29309), (8848, 29097), (8904, 28914), (9638, 26712), (9699, 26544), (9954, 25864), (10248, 25122), (11376, 22631), (12561, 20496), (12932, 19908), (13272, 19398), (13356, 19276), (14457, 17808), (15372, 16748)]