8989660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{577}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 20391840

約数和(自身を除く): 11402180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 577, 779, 820, 1154, 1558, 2308, 2885, 3116, 3895, 5770, 7790, 10963, 11540, 15580, 21926, 23657, 43852, 47314, 54815, 94628, 109630, 118285, 219260, 236570, 449483, 473140, 898966, 1797932, 2247415, 4494830, 8989660]

約数ペア:

[(1, 8989660), (2, 4494830), (4, 2247415), (5, 1797932), (10, 898966), (19, 473140), (20, 449483), (38, 236570), (41, 219260), (76, 118285), (82, 109630), (95, 94628), (164, 54815), (190, 47314), (205, 43852), (380, 23657), (410, 21926), (577, 15580), (779, 11540), (820, 10963), (1154, 7790), (1558, 5770), (2308, 3895), (2885, 3116)]