80689778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 133358400

約数和(自身を除く): 52668622

約数列:

[1, 2, 13, 26, 83, 139, 166, 269, 278, 538, 1079, 1807, 2158, 3497, 3614, 6994, 11537, 22327, 23074, 37391, 44654, 74782, 149981, 290251, 299962, 486083, 580502, 972166, 3103453, 6206906, 40344889, 80689778]

約数ペア:

[(1, 80689778), (2, 40344889), (13, 6206906), (26, 3103453), (83, 972166), (139, 580502), (166, 486083), (269, 299962), (278, 290251), (538, 149981), (1079, 74782), (1807, 44654), (2158, 37391), (3497, 23074), (3614, 22327), (6994, 11537)]