2561520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:850

約数の個数: 80

約数和(自身を含む): 8561952

約数和(自身を除く): 6000432

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, 821, 1040, 1560, 1642, 2463, 3120, 3284, 4105, 4926, 6568, 8210, 9852, 10673, 12315, 13136, 16420, 19704, 21346, 24630, 32019, 32840, 39408, 42692, 49260, 53365, 64038, 65680, 85384, 98520, 106730, 128076, 160095, 170768, 197040, 213460, 256152, 320190, 426920, 512304, 640380, 853840, 1280760, 2561520]

約数ペア:

[(1, 2561520), (2, 1280760), (3, 853840), (4, 640380), (5, 512304), (6, 426920), (8, 320190), (10, 256152), (12, 213460), (13, 197040), (15, 170768), (16, 160095), (20, 128076), (24, 106730), (26, 98520), (30, 85384), (39, 65680), (40, 64038), (48, 53365), (52, 49260), (60, 42692), (65, 39408), (78, 32840), (80, 32019), (104, 24630), (120, 21346), (130, 19704), (156, 16420), (195, 13136), (208, 12315), (240, 10673), (260, 9852), (312, 8210), (390, 6568), (520, 4926), (624, 4105), (780, 3284), (821, 3120), (1040, 2463), (1560, 1642)]