5115500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{787}}^1$

素因数の和:819

約数の個数: 48

約数和(自身を含む): 12046944

約数和(自身を除く): 6931444

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 787, 1300, 1574, 1625, 3148, 3250, 3935, 6500, 7870, 10231, 15740, 19675, 20462, 39350, 40924, 51155, 78700, 98375, 102310, 196750, 204620, 255775, 393500, 511550, 1023100, 1278875, 2557750, 5115500]

約数ペア:

[(1, 5115500), (2, 2557750), (4, 1278875), (5, 1023100), (10, 511550), (13, 393500), (20, 255775), (25, 204620), (26, 196750), (50, 102310), (52, 98375), (65, 78700), (100, 51155), (125, 40924), (130, 39350), (250, 20462), (260, 19675), (325, 15740), (500, 10231), (650, 7870), (787, 6500), (1300, 3935), (1574, 3250), (1625, 3148)]