66720710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6397}}^1$

素因数の和:6560

約数の個数: 32

約数和(自身を含む): 138196800

約数和(自身を除く): 71476090

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2086, 5215, 6397, 10430, 12794, 31985, 44779, 63970, 89558, 223895, 447790, 953153, 1906306, 4765765, 6672071, 9531530, 13344142, 33360355, 66720710]

約数ペア:

[(1, 66720710), (2, 33360355), (5, 13344142), (7, 9531530), (10, 6672071), (14, 4765765), (35, 1906306), (70, 953153), (149, 447790), (298, 223895), (745, 89558), (1043, 63970), (1490, 44779), (2086, 31985), (5215, 12794), (6397, 10430)]