626480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:245

約数の個数: 40

約数和(自身を含む): 1499904

約数和(自身を除く): 873424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 191, 205, 328, 382, 410, 656, 764, 820, 955, 1528, 1640, 1910, 3056, 3280, 3820, 7640, 7831, 15280, 15662, 31324, 39155, 62648, 78310, 125296, 156620, 313240, 626480]

約数ペア:

[(1, 626480), (2, 313240), (4, 156620), (5, 125296), (8, 78310), (10, 62648), (16, 39155), (20, 31324), (40, 15662), (41, 15280), (80, 7831), (82, 7640), (164, 3820), (191, 3280), (205, 3056), (328, 1910), (382, 1640), (410, 1528), (656, 955), (764, 820)]