85538120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 198443520

約数和(自身を除く): 112905400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 173, 188, 235, 263, 346, 376, 470, 526, 692, 865, 940, 1052, 1315, 1384, 1730, 1880, 2104, 2630, 3460, 5260, 6920, 8131, 10520, 12361, 16262, 24722, 32524, 40655, 45499, 49444, 61805, 65048, 81310, 90998, 98888, 123610, 162620, 181996, 227495, 247220, 325240, 363992, 454990, 494440, 909980, 1819960, 2138453, 4276906, 8553812, 10692265, 17107624, 21384530, 42769060, 85538120]

約数ペア:

[(1, 85538120), (2, 42769060), (4, 21384530), (5, 17107624), (8, 10692265), (10, 8553812), (20, 4276906), (40, 2138453), (47, 1819960), (94, 909980), (173, 494440), (188, 454990), (235, 363992), (263, 325240), (346, 247220), (376, 227495), (470, 181996), (526, 162620), (692, 123610), (865, 98888), (940, 90998), (1052, 81310), (1315, 65048), (1384, 61805), (1730, 49444), (1880, 45499), (2104, 40655), (2630, 32524), (3460, 24722), (5260, 16262), (6920, 12361), (8131, 10520)]