107990000

素因数分解:

$2^4\times 5^4\times {\mathrm{10799}}^1$

素因数の和:10827

約数の個数: 50

約数和(自身を含む): 261478800

約数和(自身を除く): 153488800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 10799, 21598, 43196, 53995, 86392, 107990, 172784, 215980, 269975, 431960, 539950, 863920, 1079900, 1349875, 2159800, 2699750, 4319600, 5399500, 6749375, 10799000, 13498750, 21598000, 26997500, 53995000, 107990000]

約数ペア:

[(1, 107990000), (2, 53995000), (4, 26997500), (5, 21598000), (8, 13498750), (10, 10799000), (16, 6749375), (20, 5399500), (25, 4319600), (40, 2699750), (50, 2159800), (80, 1349875), (100, 1079900), (125, 863920), (200, 539950), (250, 431960), (400, 269975), (500, 215980), (625, 172784), (1000, 107990), (1250, 86392), (2000, 53995), (2500, 43196), (5000, 21598), (10000, 10799)]