8118500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1249}}^1$

素因数の和:1281

約数の個数: 48

約数和(自身を含む): 19110000

約数和(自身を除く): 10991500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1249, 1300, 1625, 2498, 3250, 4996, 6245, 6500, 12490, 16237, 24980, 31225, 32474, 62450, 64948, 81185, 124900, 156125, 162370, 312250, 324740, 405925, 624500, 811850, 1623700, 2029625, 4059250, 8118500]

約数ペア:

[(1, 8118500), (2, 4059250), (4, 2029625), (5, 1623700), (10, 811850), (13, 624500), (20, 405925), (25, 324740), (26, 312250), (50, 162370), (52, 156125), (65, 124900), (100, 81185), (125, 64948), (130, 62450), (250, 32474), (260, 31225), (325, 24980), (500, 16237), (650, 12490), (1249, 6500), (1300, 6245), (1625, 4996), (2498, 3250)]