68081520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21821}}^1$

素因数の和:21850

約数の個数: 80

約数和(自身を含む): 227297952

約数和(自身を除く): 159216432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 21821, 43642, 65463, 87284, 109105, 130926, 174568, 218210, 261852, 283673, 327315, 349136, 436420, 523704, 567346, 654630, 851019, 872840, 1047408, 1134692, 1309260, 1418365, 1702038, 1745680, 2269384, 2618520, 2836730, 3404076, 4255095, 4538768, 5237040, 5673460, 6808152, 8510190, 11346920, 13616304, 17020380, 22693840, 34040760, 68081520]

約数ペア:

[(1, 68081520), (2, 34040760), (3, 22693840), (4, 17020380), (5, 13616304), (6, 11346920), (8, 8510190), (10, 6808152), (12, 5673460), (13, 5237040), (15, 4538768), (16, 4255095), (20, 3404076), (24, 2836730), (26, 2618520), (30, 2269384), (39, 1745680), (40, 1702038), (48, 1418365), (52, 1309260), (60, 1134692), (65, 1047408), (78, 872840), (80, 851019), (104, 654630), (120, 567346), (130, 523704), (156, 436420), (195, 349136), (208, 327315), (240, 283673), (260, 261852), (312, 218210), (390, 174568), (520, 130926), (624, 109105), (780, 87284), (1040, 65463), (1560, 43642), (3120, 21821)]