20110923908

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{20443}}^1$

素因数の和:20541

約数の個数: 72

約数和(自身を含む): 40067950272

約数和(自身を除く): 19957026364

約数列:

[1, 2, 4, 17, 23, 34, 37, 46, 68, 74, 92, 148, 289, 391, 578, 629, 782, 851, 1156, 1258, 1564, 1702, 2516, 3404, 6647, 10693, 13294, 14467, 20443, 21386, 26588, 28934, 40886, 42772, 57868, 81772, 245939, 347531, 470189, 491878, 695062, 756391, 940378, 983756, 1390124, 1512782, 1880756, 3025564, 5908027, 7993213, 11816054, 12858647, 15986426, 17396993, 23632108, 25717294, 31972852, 34793986, 51434588, 69587972, 135884621, 218596999, 271769242, 295748881, 437193998, 543538484, 591497762, 874387996, 1182995524, 5027730977, 10055461954, 20110923908]

約数ペア:

[(1, 20110923908), (2, 10055461954), (4, 5027730977), (17, 1182995524), (23, 874387996), (34, 591497762), (37, 543538484), (46, 437193998), (68, 295748881), (74, 271769242), (92, 218596999), (148, 135884621), (289, 69587972), (391, 51434588), (578, 34793986), (629, 31972852), (782, 25717294), (851, 23632108), (1156, 17396993), (1258, 15986426), (1564, 12858647), (1702, 11816054), (2516, 7993213), (3404, 5908027), (6647, 3025564), (10693, 1880756), (13294, 1512782), (14467, 1390124), (20443, 983756), (21386, 940378), (26588, 756391), (28934, 695062), (40886, 491878), (42772, 470189), (57868, 347531), (81772, 245939)]