19720125

素因数分解:

$3^3\times 5^3\times {\mathrm{5843}}^1$

素因数の和:5867

約数の個数: 32

約数和(自身を含む): 36466560

約数和(自身を除く): 16746435

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 675, 1125, 3375, 5843, 17529, 29215, 52587, 87645, 146075, 157761, 262935, 438225, 730375, 788805, 1314675, 2191125, 3944025, 6573375, 19720125]

約数ペア:

[(1, 19720125), (3, 6573375), (5, 3944025), (9, 2191125), (15, 1314675), (25, 788805), (27, 730375), (45, 438225), (75, 262935), (125, 157761), (135, 146075), (225, 87645), (375, 52587), (675, 29215), (1125, 17529), (3375, 5843)]