20006984

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{1039}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 19305016

約数列:

[1, 2, 4, 8, 29, 58, 83, 116, 166, 232, 332, 664, 1039, 2078, 2407, 4156, 4814, 8312, 9628, 19256, 30131, 60262, 86237, 120524, 172474, 241048, 344948, 689896, 2500873, 5001746, 10003492, 20006984]

約数ペア:

[(1, 20006984), (2, 10003492), (4, 5001746), (8, 2500873), (29, 689896), (58, 344948), (83, 241048), (116, 172474), (166, 120524), (232, 86237), (332, 60262), (664, 30131), (1039, 19256), (2078, 9628), (2407, 8312), (4156, 4814)]