1280760

素因数分解:

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

素因数の和:848

約数の個数: 64

約数和(自身を含む): 4142880

約数和(自身を除く): 2862120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 821, 1560, 1642, 2463, 3284, 4105, 4926, 6568, 8210, 9852, 10673, 12315, 16420, 19704, 21346, 24630, 32019, 32840, 42692, 49260, 53365, 64038, 85384, 98520, 106730, 128076, 160095, 213460, 256152, 320190, 426920, 640380, 1280760]

約数ペア:

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