16685020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 38556000

約数和(自身を除く): 21870980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 509, 596, 745, 1018, 1490, 1639, 2036, 2545, 2980, 3278, 5090, 5599, 6556, 8195, 10180, 11198, 16390, 22396, 27995, 32780, 55990, 75841, 111980, 151682, 303364, 379205, 758410, 834251, 1516820, 1668502, 3337004, 4171255, 8342510, 16685020]

約数ペア:

[(1, 16685020), (2, 8342510), (4, 4171255), (5, 3337004), (10, 1668502), (11, 1516820), (20, 834251), (22, 758410), (44, 379205), (55, 303364), (110, 151682), (149, 111980), (220, 75841), (298, 55990), (509, 32780), (596, 27995), (745, 22396), (1018, 16390), (1490, 11198), (1639, 10180), (2036, 8195), (2545, 6556), (2980, 5599), (3278, 5090)]