815163124

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{19429}}^1$

素因数の和:20067

約数の個数: 24

約数和(自身を含む): 1512975240

約数和(自身を除く): 697812116

約数列:

[1, 2, 4, 17, 34, 68, 617, 1234, 2468, 10489, 19429, 20978, 38858, 41956, 77716, 330293, 660586, 1321172, 11987693, 23975386, 47950772, 203790781, 407581562, 815163124]

約数ペア:

[(1, 815163124), (2, 407581562), (4, 203790781), (17, 47950772), (34, 23975386), (68, 11987693), (617, 1321172), (1234, 660586), (2468, 330293), (10489, 77716), (19429, 41956), (20978, 38858)]