19801125

素因数分解:

$3^3\times 5^3\times {\mathrm{5867}}^1$

素因数の和:5891

約数の個数: 32

約数和(自身を含む): 36616320

約数和(自身を除く): 16815195

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 675, 1125, 3375, 5867, 17601, 29335, 52803, 88005, 146675, 158409, 264015, 440025, 733375, 792045, 1320075, 2200125, 3960225, 6600375, 19801125]

約数ペア:

[(1, 19801125), (3, 6600375), (5, 3960225), (9, 2200125), (15, 1320075), (25, 792045), (27, 733375), (45, 440025), (75, 264015), (125, 158409), (135, 146675), (225, 88005), (375, 52803), (675, 29335), (1125, 17601), (3375, 5867)]