12951640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24907}}^1$

素因数の和:24931

約数の個数: 32

約数和(自身を含む): 31384080

約数和(自身を除く): 18432440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24907, 49814, 99628, 124535, 199256, 249070, 323791, 498140, 647582, 996280, 1295164, 1618955, 2590328, 3237910, 6475820, 12951640]

約数ペア:

[(1, 12951640), (2, 6475820), (4, 3237910), (5, 2590328), (8, 1618955), (10, 1295164), (13, 996280), (20, 647582), (26, 498140), (40, 323791), (52, 249070), (65, 199256), (104, 124535), (130, 99628), (260, 49814), (520, 24907)]