2648750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:198

約数の個数: 40

約数和(自身を含む): 5379528

約数和(自身を除く): 2730778

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 163, 250, 325, 326, 625, 650, 815, 1250, 1625, 1630, 2119, 3250, 4075, 4238, 8125, 8150, 10595, 16250, 20375, 21190, 40750, 52975, 101875, 105950, 203750, 264875, 529750, 1324375, 2648750]

約数ペア:

[(1, 2648750), (2, 1324375), (5, 529750), (10, 264875), (13, 203750), (25, 105950), (26, 101875), (50, 52975), (65, 40750), (125, 21190), (130, 20375), (163, 16250), (250, 10595), (325, 8150), (326, 8125), (625, 4238), (650, 4075), (815, 3250), (1250, 2119), (1625, 1630)]