1688891930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{991}}^1\times {\mathrm{15493}}^1$

素因数の和:16502

約数の個数: 32

約数和(自身を含む): 3319930368

約数和(自身を除く): 1631038438

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 991, 1982, 4955, 9910, 10901, 15493, 21802, 30986, 54505, 77465, 109010, 154930, 170423, 340846, 852115, 1704230, 15353563, 30707126, 76767815, 153535630, 168889193, 337778386, 844445965, 1688891930]

約数ペア:

[(1, 1688891930), (2, 844445965), (5, 337778386), (10, 168889193), (11, 153535630), (22, 76767815), (55, 30707126), (110, 15353563), (991, 1704230), (1982, 852115), (4955, 340846), (9910, 170423), (10901, 154930), (15493, 109010), (21802, 77465), (30986, 54505)]