31489900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{24223}}^1$

素因数の和:24250

約数の個数: 36

約数和(自身を含む): 73592512

約数和(自身を除く): 42102612

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 24223, 48446, 96892, 121115, 242230, 314899, 484460, 605575, 629798, 1211150, 1259596, 1574495, 2422300, 3148990, 6297980, 7872475, 15744950, 31489900]

約数ペア:

[(1, 31489900), (2, 15744950), (4, 7872475), (5, 6297980), (10, 3148990), (13, 2422300), (20, 1574495), (25, 1259596), (26, 1211150), (50, 629798), (52, 605575), (65, 484460), (100, 314899), (130, 242230), (260, 121115), (325, 96892), (650, 48446), (1300, 24223)]