12439960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 30844800

約数和(自身を除く): 18404840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 509, 520, 611, 940, 1018, 1222, 1880, 2036, 2444, 2545, 3055, 4072, 4888, 5090, 6110, 6617, 10180, 12220, 13234, 20360, 23923, 24440, 26468, 33085, 47846, 52936, 66170, 95692, 119615, 132340, 191384, 239230, 264680, 310999, 478460, 621998, 956920, 1243996, 1554995, 2487992, 3109990, 6219980, 12439960]

約数ペア:

[(1, 12439960), (2, 6219980), (4, 3109990), (5, 2487992), (8, 1554995), (10, 1243996), (13, 956920), (20, 621998), (26, 478460), (40, 310999), (47, 264680), (52, 239230), (65, 191384), (94, 132340), (104, 119615), (130, 95692), (188, 66170), (235, 52936), (260, 47846), (376, 33085), (470, 26468), (509, 24440), (520, 23923), (611, 20360), (940, 13234), (1018, 12220), (1222, 10180), (1880, 6617), (2036, 6110), (2444, 5090), (2545, 4888), (3055, 4072)]