18579920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6277}}^1$

素因数の和:6327

約数の個数: 40

約数和(自身を含む): 44372904

約数和(自身を除く): 25792984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6277, 12554, 25108, 31385, 50216, 62770, 100432, 125540, 232249, 251080, 464498, 502160, 928996, 1161245, 1857992, 2322490, 3715984, 4644980, 9289960, 18579920]

約数ペア:

[(1, 18579920), (2, 9289960), (4, 4644980), (5, 3715984), (8, 2322490), (10, 1857992), (16, 1161245), (20, 928996), (37, 502160), (40, 464498), (74, 251080), (80, 232249), (148, 125540), (185, 100432), (296, 62770), (370, 50216), (592, 31385), (740, 25108), (1480, 12554), (2960, 6277)]