81265984

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:803

約数の個数: 56

約数和(自身を含む): 172519848

約数和(自身を除く): 91253864

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 113, 136, 226, 272, 452, 544, 661, 904, 1088, 1322, 1808, 1921, 2644, 3616, 3842, 5288, 7232, 7684, 10576, 11237, 15368, 21152, 22474, 30736, 42304, 44948, 61472, 74693, 89896, 122944, 149386, 179792, 298772, 359584, 597544, 719168, 1195088, 1269781, 2390176, 2539562, 4780352, 5079124, 10158248, 20316496, 40632992, 81265984]

約数ペア:

[(1, 81265984), (2, 40632992), (4, 20316496), (8, 10158248), (16, 5079124), (17, 4780352), (32, 2539562), (34, 2390176), (64, 1269781), (68, 1195088), (113, 719168), (136, 597544), (226, 359584), (272, 298772), (452, 179792), (544, 149386), (661, 122944), (904, 89896), (1088, 74693), (1322, 61472), (1808, 44948), (1921, 42304), (2644, 30736), (3616, 22474), (3842, 21152), (5288, 15368), (7232, 11237), (7684, 10576)]