31106920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 76043520

約数和(自身を除く): 44936600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 163, 260, 326, 367, 520, 652, 734, 815, 1304, 1468, 1630, 1835, 2119, 2936, 3260, 3670, 4238, 4771, 6520, 7340, 8476, 9542, 10595, 14680, 16952, 19084, 21190, 23855, 38168, 42380, 47710, 59821, 84760, 95420, 119642, 190840, 239284, 299105, 478568, 598210, 777673, 1196420, 1555346, 2392840, 3110692, 3888365, 6221384, 7776730, 15553460, 31106920]

約数ペア:

[(1, 31106920), (2, 15553460), (4, 7776730), (5, 6221384), (8, 3888365), (10, 3110692), (13, 2392840), (20, 1555346), (26, 1196420), (40, 777673), (52, 598210), (65, 478568), (104, 299105), (130, 239284), (163, 190840), (260, 119642), (326, 95420), (367, 84760), (520, 59821), (652, 47710), (734, 42380), (815, 38168), (1304, 23855), (1468, 21190), (1630, 19084), (1835, 16952), (2119, 14680), (2936, 10595), (3260, 9542), (3670, 8476), (4238, 7340), (4771, 6520)]