81915232

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1013}}^1$

素因数の和:1068

約数の個数: 72

約数和(自身を含む): 194712336

約数和(自身を除く): 112797104

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 361, 532, 608, 722, 1013, 1064, 1444, 2026, 2128, 2527, 2888, 4052, 4256, 5054, 5776, 7091, 8104, 10108, 11552, 14182, 16208, 19247, 20216, 28364, 32416, 38494, 40432, 56728, 76988, 80864, 113456, 134729, 153976, 226912, 269458, 307952, 365693, 538916, 615904, 731386, 1077832, 1462772, 2155664, 2559851, 2925544, 4311328, 5119702, 5851088, 10239404, 11702176, 20478808, 40957616, 81915232]

約数ペア:

[(1, 81915232), (2, 40957616), (4, 20478808), (7, 11702176), (8, 10239404), (14, 5851088), (16, 5119702), (19, 4311328), (28, 2925544), (32, 2559851), (38, 2155664), (56, 1462772), (76, 1077832), (112, 731386), (133, 615904), (152, 538916), (224, 365693), (266, 307952), (304, 269458), (361, 226912), (532, 153976), (608, 134729), (722, 113456), (1013, 80864), (1064, 76988), (1444, 56728), (2026, 40432), (2128, 38494), (2527, 32416), (2888, 28364), (4052, 20216), (4256, 19247), (5054, 16208), (5776, 14182), (7091, 11552), (8104, 10108)]