1785040

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 4238568

約数和(自身を除く): 2453528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 421, 424, 530, 842, 848, 1060, 1684, 2105, 2120, 3368, 4210, 4240, 6736, 8420, 16840, 22313, 33680, 44626, 89252, 111565, 178504, 223130, 357008, 446260, 892520, 1785040]

約数ペア:

[(1, 1785040), (2, 892520), (4, 446260), (5, 357008), (8, 223130), (10, 178504), (16, 111565), (20, 89252), (40, 44626), (53, 33680), (80, 22313), (106, 16840), (212, 8420), (265, 6736), (421, 4240), (424, 4210), (530, 3368), (842, 2120), (848, 2105), (1060, 1684)]