313240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 725760

約数和(自身を除く): 412520

約数列:

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

約数ペア:

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