20585470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^3\times {\mathrm{419}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 39463200

約数和(自身を除く): 18877730

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 419, 578, 838, 1445, 2095, 2890, 4190, 4913, 7123, 9826, 14246, 24565, 35615, 49130, 71230, 121091, 242182, 605455, 1210910, 2058547, 4117094, 10292735, 20585470]

約数ペア:

[(1, 20585470), (2, 10292735), (5, 4117094), (10, 2058547), (17, 1210910), (34, 605455), (85, 242182), (170, 121091), (289, 71230), (419, 49130), (578, 35615), (838, 24565), (1445, 14246), (2095, 9826), (2890, 7123), (4190, 4913)]