12893680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3931}}^1$

素因数の和:3985

約数の個数: 40

約数和(自身を含む): 30716784

約数和(自身を除く): 17823104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 3931, 7862, 15724, 19655, 31448, 39310, 62896, 78620, 157240, 161171, 314480, 322342, 644684, 805855, 1289368, 1611710, 2578736, 3223420, 6446840, 12893680]

約数ペア:

[(1, 12893680), (2, 6446840), (4, 3223420), (5, 2578736), (8, 1611710), (10, 1289368), (16, 805855), (20, 644684), (40, 322342), (41, 314480), (80, 161171), (82, 157240), (164, 78620), (205, 62896), (328, 39310), (410, 31448), (656, 19655), (820, 15724), (1640, 7862), (3280, 3931)]