68900240

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9677}}^1$

素因数の和:9779

約数の個数: 40

約数和(自身を含む): 162009720

約数和(自身を除く): 93109480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 9677, 19354, 38708, 48385, 77416, 96770, 154832, 193540, 387080, 774160, 861253, 1722506, 3445012, 4306265, 6890024, 8612530, 13780048, 17225060, 34450120, 68900240]

約数ペア:

[(1, 68900240), (2, 34450120), (4, 17225060), (5, 13780048), (8, 8612530), (10, 6890024), (16, 4306265), (20, 3445012), (40, 1722506), (80, 861253), (89, 774160), (178, 387080), (356, 193540), (445, 154832), (712, 96770), (890, 77416), (1424, 48385), (1780, 38708), (3560, 19354), (7120, 9677)]