20542250

素因数分解:

$2^1\times 5^3\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 38817792

約数和(自身を除く): 18275542

約数列:

[1, 2, 5, 10, 25, 50, 125, 127, 250, 254, 635, 647, 1270, 1294, 3175, 3235, 6350, 6470, 15875, 16175, 31750, 32350, 80875, 82169, 161750, 164338, 410845, 821690, 2054225, 4108450, 10271125, 20542250]

約数ペア:

[(1, 20542250), (2, 10271125), (5, 4108450), (10, 2054225), (25, 821690), (50, 410845), (125, 164338), (127, 161750), (250, 82169), (254, 80875), (635, 32350), (647, 31750), (1270, 16175), (1294, 15875), (3175, 6470), (3235, 6350)]