81984544

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:246

約数の個数: 72

約数和(自身を含む): 175125888

約数和(自身を除く): 93141344

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 76, 94, 151, 152, 188, 302, 304, 361, 376, 604, 608, 722, 752, 893, 1208, 1444, 1504, 1786, 2416, 2869, 2888, 3572, 4832, 5738, 5776, 7097, 7144, 11476, 11552, 14194, 14288, 16967, 22952, 28388, 28576, 33934, 45904, 54511, 56776, 67868, 91808, 109022, 113552, 134843, 135736, 218044, 227104, 269686, 271472, 436088, 539372, 542944, 872176, 1078744, 1744352, 2157488, 2562017, 4314976, 5124034, 10248068, 20496136, 40992272, 81984544]

約数ペア:

[(1, 81984544), (2, 40992272), (4, 20496136), (8, 10248068), (16, 5124034), (19, 4314976), (32, 2562017), (38, 2157488), (47, 1744352), (76, 1078744), (94, 872176), (151, 542944), (152, 539372), (188, 436088), (302, 271472), (304, 269686), (361, 227104), (376, 218044), (604, 135736), (608, 134843), (722, 113552), (752, 109022), (893, 91808), (1208, 67868), (1444, 56776), (1504, 54511), (1786, 45904), (2416, 33934), (2869, 28576), (2888, 28388), (3572, 22952), (4832, 16967), (5738, 14288), (5776, 14194), (7097, 11552), (7144, 11476)]