68966840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 160760160

約数和(自身を除く): 91793320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 101, 172, 202, 215, 344, 397, 404, 430, 505, 794, 808, 860, 1010, 1588, 1720, 1985, 2020, 3176, 3970, 4040, 4343, 7940, 8686, 15880, 17071, 17372, 21715, 34142, 34744, 40097, 43430, 68284, 80194, 85355, 86860, 136568, 160388, 170710, 173720, 200485, 320776, 341420, 400970, 682840, 801940, 1603880, 1724171, 3448342, 6896684, 8620855, 13793368, 17241710, 34483420, 68966840]

約数ペア:

[(1, 68966840), (2, 34483420), (4, 17241710), (5, 13793368), (8, 8620855), (10, 6896684), (20, 3448342), (40, 1724171), (43, 1603880), (86, 801940), (101, 682840), (172, 400970), (202, 341420), (215, 320776), (344, 200485), (397, 173720), (404, 170710), (430, 160388), (505, 136568), (794, 86860), (808, 85355), (860, 80194), (1010, 68284), (1588, 43430), (1720, 40097), (1985, 34744), (2020, 34142), (3176, 21715), (3970, 17372), (4040, 17071), (4343, 15880), (7940, 8686)]