81669250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{1933}}^1$

素因数の和:1976

約数の個数: 48

約数和(自身を含む): 165635496

約数和(自身を除く): 83966246

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 169, 250, 325, 338, 650, 845, 1625, 1690, 1933, 3250, 3866, 4225, 8450, 9665, 19330, 21125, 25129, 42250, 48325, 50258, 96650, 125645, 241625, 251290, 326677, 483250, 628225, 653354, 1256450, 1633385, 3141125, 3266770, 6282250, 8166925, 16333850, 40834625, 81669250]

約数ペア:

[(1, 81669250), (2, 40834625), (5, 16333850), (10, 8166925), (13, 6282250), (25, 3266770), (26, 3141125), (50, 1633385), (65, 1256450), (125, 653354), (130, 628225), (169, 483250), (250, 326677), (325, 251290), (338, 241625), (650, 125645), (845, 96650), (1625, 50258), (1690, 48325), (1933, 42250), (3250, 25129), (3866, 21125), (4225, 19330), (8450, 9665)]