257029232

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 547345920

約数和(自身を除く): 290316688

約数列:

[1, 2, 4, 8, 16, 23, 37, 43, 46, 74, 86, 92, 148, 172, 184, 296, 344, 368, 439, 592, 688, 851, 878, 989, 1591, 1702, 1756, 1978, 3182, 3404, 3512, 3956, 6364, 6808, 7024, 7912, 10097, 12728, 13616, 15824, 16243, 18877, 20194, 25456, 32486, 36593, 37754, 40388, 64972, 73186, 75508, 80776, 129944, 146372, 151016, 161552, 259888, 292744, 302032, 373589, 434171, 585488, 698449, 747178, 868342, 1396898, 1494356, 1736684, 2793796, 2988712, 3473368, 5587592, 5977424, 6946736, 11175184, 16064327, 32128654, 64257308, 128514616, 257029232]

約数ペア:

[(1, 257029232), (2, 128514616), (4, 64257308), (8, 32128654), (16, 16064327), (23, 11175184), (37, 6946736), (43, 5977424), (46, 5587592), (74, 3473368), (86, 2988712), (92, 2793796), (148, 1736684), (172, 1494356), (184, 1396898), (296, 868342), (344, 747178), (368, 698449), (439, 585488), (592, 434171), (688, 373589), (851, 302032), (878, 292744), (989, 259888), (1591, 161552), (1702, 151016), (1756, 146372), (1978, 129944), (3182, 80776), (3404, 75508), (3512, 73186), (3956, 64972), (6364, 40388), (6808, 37754), (7024, 36593), (7912, 32486), (10097, 25456), (12728, 20194), (13616, 18877), (15824, 16243)]