257460580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1879}}^1$

素因数の和:1949

約数の個数: 96

約数和(自身を含む): 636733440

約数和(自身を除く): 379272860

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 31, 34, 52, 62, 65, 68, 85, 124, 130, 155, 170, 221, 260, 310, 340, 403, 442, 527, 620, 806, 884, 1054, 1105, 1612, 1879, 2015, 2108, 2210, 2635, 3758, 4030, 4420, 5270, 6851, 7516, 8060, 9395, 10540, 13702, 18790, 24427, 27404, 31943, 34255, 37580, 48854, 58249, 63886, 68510, 97708, 116498, 122135, 127772, 137020, 159715, 232996, 244270, 291245, 319430, 415259, 488540, 582490, 638860, 757237, 830518, 990233, 1164980, 1514474, 1661036, 1980466, 2076295, 3028948, 3786185, 3960932, 4152590, 4951165, 7572370, 8305180, 9902330, 12873029, 15144740, 19804660, 25746058, 51492116, 64365145, 128730290, 257460580]

約数ペア:

[(1, 257460580), (2, 128730290), (4, 64365145), (5, 51492116), (10, 25746058), (13, 19804660), (17, 15144740), (20, 12873029), (26, 9902330), (31, 8305180), (34, 7572370), (52, 4951165), (62, 4152590), (65, 3960932), (68, 3786185), (85, 3028948), (124, 2076295), (130, 1980466), (155, 1661036), (170, 1514474), (221, 1164980), (260, 990233), (310, 830518), (340, 757237), (403, 638860), (442, 582490), (527, 488540), (620, 415259), (806, 319430), (884, 291245), (1054, 244270), (1105, 232996), (1612, 159715), (1879, 137020), (2015, 127772), (2108, 122135), (2210, 116498), (2635, 97708), (3758, 68510), (4030, 63886), (4420, 58249), (5270, 48854), (6851, 37580), (7516, 34255), (8060, 31943), (9395, 27404), (10540, 24427), (13702, 18790)]