51397840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:776

約数の個数: 80

約数和(自身を含む): 130647888

約数和(自身を除く): 79250048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 146, 208, 260, 292, 365, 520, 584, 677, 730, 949, 1040, 1168, 1354, 1460, 1898, 2708, 2920, 3385, 3796, 4745, 5416, 5840, 6770, 7592, 8801, 9490, 10832, 13540, 15184, 17602, 18980, 27080, 35204, 37960, 44005, 49421, 54160, 70408, 75920, 88010, 98842, 140816, 176020, 197684, 247105, 352040, 395368, 494210, 642473, 704080, 790736, 988420, 1284946, 1976840, 2569892, 3212365, 3953680, 5139784, 6424730, 10279568, 12849460, 25698920, 51397840]

約数ペア:

[(1, 51397840), (2, 25698920), (4, 12849460), (5, 10279568), (8, 6424730), (10, 5139784), (13, 3953680), (16, 3212365), (20, 2569892), (26, 1976840), (40, 1284946), (52, 988420), (65, 790736), (73, 704080), (80, 642473), (104, 494210), (130, 395368), (146, 352040), (208, 247105), (260, 197684), (292, 176020), (365, 140816), (520, 98842), (584, 88010), (677, 75920), (730, 70408), (949, 54160), (1040, 49421), (1168, 44005), (1354, 37960), (1460, 35204), (1898, 27080), (2708, 18980), (2920, 17602), (3385, 15184), (3796, 13540), (4745, 10832), (5416, 9490), (5840, 8801), (6770, 7592)]