64767800

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2971}}^1$

素因数の和:3096

約数の個数: 48

約数和(自身を含む): 152017800

約数和(自身を除く): 87250000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 1090, 2180, 2725, 2971, 4360, 5450, 5942, 10900, 11884, 14855, 21800, 23768, 29710, 59420, 74275, 118840, 148550, 297100, 323839, 594200, 647678, 1295356, 1619195, 2590712, 3238390, 6476780, 8095975, 12953560, 16191950, 32383900, 64767800]

約数ペア:

[(1, 64767800), (2, 32383900), (4, 16191950), (5, 12953560), (8, 8095975), (10, 6476780), (20, 3238390), (25, 2590712), (40, 1619195), (50, 1295356), (100, 647678), (109, 594200), (200, 323839), (218, 297100), (436, 148550), (545, 118840), (872, 74275), (1090, 59420), (2180, 29710), (2725, 23768), (2971, 21800), (4360, 14855), (5450, 11884), (5942, 10900)]