1397691820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{23827}}^1$

素因数の和:24262

約数の個数: 48

約数和(自身を含む): 3362607360

約数和(自身を除く): 1964915540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 419, 838, 1676, 2095, 2933, 4190, 5866, 8380, 11732, 14665, 23827, 29330, 47654, 58660, 95308, 119135, 166789, 238270, 333578, 476540, 667156, 833945, 1667890, 3335780, 9983513, 19967026, 39934052, 49917565, 69884591, 99835130, 139769182, 199670260, 279538364, 349422955, 698845910, 1397691820]

約数ペア:

[(1, 1397691820), (2, 698845910), (4, 349422955), (5, 279538364), (7, 199670260), (10, 139769182), (14, 99835130), (20, 69884591), (28, 49917565), (35, 39934052), (70, 19967026), (140, 9983513), (419, 3335780), (838, 1667890), (1676, 833945), (2095, 667156), (2933, 476540), (4190, 333578), (5866, 238270), (8380, 166789), (11732, 119135), (14665, 95308), (23827, 58660), (29330, 47654)]