20316496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:799

約数の個数: 40

約数和(自身を含む): 42111144

約数和(自身を除く): 21794648

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 113, 136, 226, 272, 452, 661, 904, 1322, 1808, 1921, 2644, 3842, 5288, 7684, 10576, 11237, 15368, 22474, 30736, 44948, 74693, 89896, 149386, 179792, 298772, 597544, 1195088, 1269781, 2539562, 5079124, 10158248, 20316496]

約数ペア:

[(1, 20316496), (2, 10158248), (4, 5079124), (8, 2539562), (16, 1269781), (17, 1195088), (34, 597544), (68, 298772), (113, 179792), (136, 149386), (226, 89896), (272, 74693), (452, 44948), (661, 30736), (904, 22474), (1322, 15368), (1808, 11237), (1921, 10576), (2644, 7684), (3842, 5288)]