102890000

素因数分解:

$2^4\times 5^4\times {\mathrm{10289}}^1$

素因数の和:10317

約数の個数: 50

約数和(自身を含む): 249131190

約数和(自身を除く): 146241190

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, 10289, 20578, 41156, 51445, 82312, 102890, 164624, 205780, 257225, 411560, 514450, 823120, 1028900, 1286125, 2057800, 2572250, 4115600, 5144500, 6430625, 10289000, 12861250, 20578000, 25722500, 51445000, 102890000]

約数ペア:

[(1, 102890000), (2, 51445000), (4, 25722500), (5, 20578000), (8, 12861250), (10, 10289000), (16, 6430625), (20, 5144500), (25, 4115600), (40, 2572250), (50, 2057800), (80, 1286125), (100, 1028900), (125, 823120), (200, 514450), (250, 411560), (400, 257225), (500, 205780), (625, 164624), (1000, 102890), (1250, 82312), (2000, 51445), (2500, 41156), (5000, 20578), (10000, 10289)]