22781240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 31650760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 41, 58, 82, 116, 145, 164, 205, 232, 290, 328, 410, 479, 580, 820, 958, 1160, 1189, 1640, 1916, 2378, 2395, 3832, 4756, 4790, 5945, 9512, 9580, 11890, 13891, 19160, 19639, 23780, 27782, 39278, 47560, 55564, 69455, 78556, 98195, 111128, 138910, 157112, 196390, 277820, 392780, 555640, 569531, 785560, 1139062, 2278124, 2847655, 4556248, 5695310, 11390620, 22781240]

約数ペア:

[(1, 22781240), (2, 11390620), (4, 5695310), (5, 4556248), (8, 2847655), (10, 2278124), (20, 1139062), (29, 785560), (40, 569531), (41, 555640), (58, 392780), (82, 277820), (116, 196390), (145, 157112), (164, 138910), (205, 111128), (232, 98195), (290, 78556), (328, 69455), (410, 55564), (479, 47560), (580, 39278), (820, 27782), (958, 23780), (1160, 19639), (1189, 19160), (1640, 13891), (1916, 11890), (2378, 9580), (2395, 9512), (3832, 5945), (4756, 4790)]