259447280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{170689}}^1$

素因数の和:170721

約数の個数: 40

約数和(自身を含む): 634966800

約数和(自身を除く): 375519520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 170689, 341378, 682756, 853445, 1365512, 1706890, 2731024, 3243091, 3413780, 6486182, 6827560, 12972364, 13655120, 16215455, 25944728, 32430910, 51889456, 64861820, 129723640, 259447280]

約数ペア:

[(1, 259447280), (2, 129723640), (4, 64861820), (5, 51889456), (8, 32430910), (10, 25944728), (16, 16215455), (19, 13655120), (20, 12972364), (38, 6827560), (40, 6486182), (76, 3413780), (80, 3243091), (95, 2731024), (152, 1706890), (190, 1365512), (304, 853445), (380, 682756), (760, 341378), (1520, 170689)]