20191930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{347}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 41567904

約数和(自身を除く): 21375974

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 347, 506, 529, 694, 1058, 1265, 1735, 2530, 2645, 3470, 3817, 5290, 5819, 7634, 7981, 11638, 15962, 19085, 29095, 38170, 39905, 58190, 79810, 87791, 175582, 183563, 367126, 438955, 877910, 917815, 1835630, 2019193, 4038386, 10095965, 20191930]

約数ペア:

[(1, 20191930), (2, 10095965), (5, 4038386), (10, 2019193), (11, 1835630), (22, 917815), (23, 877910), (46, 438955), (55, 367126), (110, 183563), (115, 175582), (230, 87791), (253, 79810), (347, 58190), (506, 39905), (529, 38170), (694, 29095), (1058, 19085), (1265, 15962), (1735, 11638), (2530, 7981), (2645, 7634), (3470, 5819), (3817, 5290)]