678741260

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{51971}}^1$

素因数の和:52633

約数の個数: 24

約数和(自身を含む): 1427566896

約数和(自身を除く): 748825636

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 6530, 13060, 51971, 103942, 207884, 259855, 519710, 1039420, 33937063, 67874126, 135748252, 169685315, 339370630, 678741260]

約数ペア:

[(1, 678741260), (2, 339370630), (4, 169685315), (5, 135748252), (10, 67874126), (20, 33937063), (653, 1039420), (1306, 519710), (2612, 259855), (3265, 207884), (6530, 103942), (13060, 51971)]