25698920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 63216720

約数和(自身を除く): 37517800

約数列:

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

約数ペア:

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