20532872

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 41776560

約数和(自身を除く): 21243688

約数列:

[1, 2, 4, 8, 17, 34, 68, 83, 107, 136, 166, 214, 289, 332, 428, 578, 664, 856, 1156, 1411, 1819, 2312, 2822, 3638, 5644, 7276, 8881, 11288, 14552, 17762, 23987, 30923, 35524, 47974, 61846, 71048, 95948, 123692, 150977, 191896, 247384, 301954, 603908, 1207816, 2566609, 5133218, 10266436, 20532872]

約数ペア:

[(1, 20532872), (2, 10266436), (4, 5133218), (8, 2566609), (17, 1207816), (34, 603908), (68, 301954), (83, 247384), (107, 191896), (136, 150977), (166, 123692), (214, 95948), (289, 71048), (332, 61846), (428, 47974), (578, 35524), (664, 30923), (856, 23987), (1156, 17762), (1411, 14552), (1819, 11288), (2312, 8881), (2822, 7276), (3638, 5644)]