28603640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{821}}^1$

素因数の和:912

約数の個数: 64

約数和(自身を含む): 70428960

約数和(自身を除く): 41825320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 821, 871, 1340, 1642, 1742, 2680, 3284, 3484, 4105, 4355, 6568, 6968, 8210, 8710, 10673, 16420, 17420, 21346, 32840, 34840, 42692, 53365, 55007, 85384, 106730, 110014, 213460, 220028, 275035, 426920, 440056, 550070, 715091, 1100140, 1430182, 2200280, 2860364, 3575455, 5720728, 7150910, 14301820, 28603640]

約数ペア:

[(1, 28603640), (2, 14301820), (4, 7150910), (5, 5720728), (8, 3575455), (10, 2860364), (13, 2200280), (20, 1430182), (26, 1100140), (40, 715091), (52, 550070), (65, 440056), (67, 426920), (104, 275035), (130, 220028), (134, 213460), (260, 110014), (268, 106730), (335, 85384), (520, 55007), (536, 53365), (670, 42692), (821, 34840), (871, 32840), (1340, 21346), (1642, 17420), (1742, 16420), (2680, 10673), (3284, 8710), (3484, 8210), (4105, 6968), (4355, 6568)]