31517680

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2417}}^1$

素因数の和:2593

約数の個数: 40

約数和(自身を含む): 73758672

約数和(自身を除く): 42240992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2417, 2608, 3260, 4834, 6520, 9668, 12085, 13040, 19336, 24170, 38672, 48340, 96680, 193360, 393971, 787942, 1575884, 1969855, 3151768, 3939710, 6303536, 7879420, 15758840, 31517680]

約数ペア:

[(1, 31517680), (2, 15758840), (4, 7879420), (5, 6303536), (8, 3939710), (10, 3151768), (16, 1969855), (20, 1575884), (40, 787942), (80, 393971), (163, 193360), (326, 96680), (652, 48340), (815, 38672), (1304, 24170), (1630, 19336), (2417, 13040), (2608, 12085), (3260, 9668), (4834, 6520)]