64490920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124021}}^1$

素因数の和:124045

約数の個数: 32

約数和(自身を含む): 156267720

約数和(自身を除く): 91776800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124021, 248042, 496084, 620105, 992168, 1240210, 1612273, 2480420, 3224546, 4960840, 6449092, 8061365, 12898184, 16122730, 32245460, 64490920]

約数ペア:

[(1, 64490920), (2, 32245460), (4, 16122730), (5, 12898184), (8, 8061365), (10, 6449092), (13, 4960840), (20, 3224546), (26, 2480420), (40, 1612273), (52, 1240210), (65, 992168), (104, 620105), (130, 496084), (260, 248042), (520, 124021)]