190900900

素因数分解:

$2^2\times 5^2\times {\mathrm{1289}}^1\times {\mathrm{1481}}^1$

素因数の和:2784

約数の個数: 36

約数和(自身を含む): 414856260

約数和(自身を除く): 223955360

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1289, 1481, 2578, 2962, 5156, 5924, 6445, 7405, 12890, 14810, 25780, 29620, 32225, 37025, 64450, 74050, 128900, 148100, 1909009, 3818018, 7636036, 9545045, 19090090, 38180180, 47725225, 95450450, 190900900]

約数ペア:

[(1, 190900900), (2, 95450450), (4, 47725225), (5, 38180180), (10, 19090090), (20, 9545045), (25, 7636036), (50, 3818018), (100, 1909009), (1289, 148100), (1481, 128900), (2578, 74050), (2962, 64450), (5156, 37025), (5924, 32225), (6445, 29620), (7405, 25780), (12890, 14810)]