118654640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 298897536

約数和(自身を除く): 180242896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 271, 421, 520, 542, 842, 1040, 1084, 1355, 1684, 2105, 2168, 2710, 3368, 3523, 4210, 4336, 5420, 5473, 6736, 7046, 8420, 10840, 10946, 14092, 16840, 17615, 21680, 21892, 27365, 28184, 33680, 35230, 43784, 54730, 56368, 70460, 87568, 109460, 114091, 140920, 218920, 228182, 281840, 437840, 456364, 570455, 912728, 1140910, 1483183, 1825456, 2281820, 2966366, 4563640, 5932732, 7415915, 9127280, 11865464, 14831830, 23730928, 29663660, 59327320, 118654640]

約数ペア:

[(1, 118654640), (2, 59327320), (4, 29663660), (5, 23730928), (8, 14831830), (10, 11865464), (13, 9127280), (16, 7415915), (20, 5932732), (26, 4563640), (40, 2966366), (52, 2281820), (65, 1825456), (80, 1483183), (104, 1140910), (130, 912728), (208, 570455), (260, 456364), (271, 437840), (421, 281840), (520, 228182), (542, 218920), (842, 140920), (1040, 114091), (1084, 109460), (1355, 87568), (1684, 70460), (2105, 56368), (2168, 54730), (2710, 43784), (3368, 35230), (3523, 33680), (4210, 28184), (4336, 27365), (5420, 21892), (5473, 21680), (6736, 17615), (7046, 16840), (8420, 14092), (10840, 10946)]