13223920

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3517}}^1$

素因数の和:3577

約数の個数: 40

約数和(自身を含む): 31408704

約数和(自身を除く): 18184784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3517, 3760, 7034, 14068, 17585, 28136, 35170, 56272, 70340, 140680, 165299, 281360, 330598, 661196, 826495, 1322392, 1652990, 2644784, 3305980, 6611960, 13223920]

約数ペア:

[(1, 13223920), (2, 6611960), (4, 3305980), (5, 2644784), (8, 1652990), (10, 1322392), (16, 826495), (20, 661196), (40, 330598), (47, 281360), (80, 165299), (94, 140680), (188, 70340), (235, 56272), (376, 35170), (470, 28136), (752, 17585), (940, 14068), (1880, 7034), (3517, 3760)]