19314020

素因数分解:

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

素因数の和:401

約数の個数: 72

約数和(自身を含む): 46654272

約数和(自身を除く): 27340252

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 347, 460, 484, 506, 605, 694, 1012, 1210, 1265, 1388, 1735, 2420, 2530, 2783, 3470, 3817, 5060, 5566, 6940, 7634, 7981, 11132, 13915, 15268, 15962, 19085, 27830, 31924, 38170, 39905, 41987, 55660, 76340, 79810, 83974, 87791, 159620, 167948, 175582, 209935, 351164, 419870, 438955, 839740, 877910, 965701, 1755820, 1931402, 3862804, 4828505, 9657010, 19314020]

約数ペア:

[(1, 19314020), (2, 9657010), (4, 4828505), (5, 3862804), (10, 1931402), (11, 1755820), (20, 965701), (22, 877910), (23, 839740), (44, 438955), (46, 419870), (55, 351164), (92, 209935), (110, 175582), (115, 167948), (121, 159620), (220, 87791), (230, 83974), (242, 79810), (253, 76340), (347, 55660), (460, 41987), (484, 39905), (506, 38170), (605, 31924), (694, 27830), (1012, 19085), (1210, 15962), (1265, 15268), (1388, 13915), (1735, 11132), (2420, 7981), (2530, 7634), (2783, 6940), (3470, 5566), (3817, 5060)]