31280315

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 41655600

約数和(自身を除く): 10375285

約数列:

[1, 5, 11, 55, 121, 149, 347, 605, 745, 1639, 1735, 3817, 8195, 18029, 19085, 41987, 51703, 90145, 209935, 258515, 568733, 2843665, 6256063, 31280315]

約数ペア:

[(1, 31280315), (5, 6256063), (11, 2843665), (55, 568733), (121, 258515), (149, 209935), (347, 90145), (605, 51703), (745, 41987), (1639, 19085), (1735, 18029), (3817, 8195)]