28178584

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 62763840

約数和(自身を除く): 34585256

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 73, 113, 122, 146, 226, 244, 292, 427, 452, 488, 511, 584, 791, 854, 904, 1022, 1582, 1708, 2044, 3164, 3416, 4088, 4453, 6328, 6893, 8249, 8906, 13786, 16498, 17812, 27572, 31171, 32996, 35624, 48251, 55144, 57743, 62342, 65992, 96502, 115486, 124684, 193004, 230972, 249368, 386008, 461944, 503189, 1006378, 2012756, 3522323, 4025512, 7044646, 14089292, 28178584]

約数ペア:

[(1, 28178584), (2, 14089292), (4, 7044646), (7, 4025512), (8, 3522323), (14, 2012756), (28, 1006378), (56, 503189), (61, 461944), (73, 386008), (113, 249368), (122, 230972), (146, 193004), (226, 124684), (244, 115486), (292, 96502), (427, 65992), (452, 62342), (488, 57743), (511, 55144), (584, 48251), (791, 35624), (854, 32996), (904, 31171), (1022, 27572), (1582, 17812), (1708, 16498), (2044, 13786), (3164, 8906), (3416, 8249), (4088, 6893), (4453, 6328)]