65412220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 141726816

約数和(自身を除く): 76314596

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 241, 331, 410, 482, 662, 820, 964, 1205, 1324, 1655, 2410, 3310, 4820, 6620, 9881, 13571, 19762, 27142, 39524, 49405, 54284, 67855, 79771, 98810, 135710, 159542, 197620, 271420, 319084, 398855, 797710, 1595420, 3270611, 6541222, 13082444, 16353055, 32706110, 65412220]

約数ペア:

[(1, 65412220), (2, 32706110), (4, 16353055), (5, 13082444), (10, 6541222), (20, 3270611), (41, 1595420), (82, 797710), (164, 398855), (205, 319084), (241, 271420), (331, 197620), (410, 159542), (482, 135710), (662, 98810), (820, 79771), (964, 67855), (1205, 54284), (1324, 49405), (1655, 39524), (2410, 27142), (3310, 19762), (4820, 13571), (6620, 9881)]