201989860

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{7823}}^1$

素因数の和:9123

約数の個数: 24

約数和(自身を含む): 424561536

約数和(自身を除く): 222571676

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 5164, 6455, 7823, 12910, 15646, 25820, 31292, 39115, 78230, 156460, 10099493, 20198986, 40397972, 50497465, 100994930, 201989860]

約数ペア:

[(1, 201989860), (2, 100994930), (4, 50497465), (5, 40397972), (10, 20198986), (20, 10099493), (1291, 156460), (2582, 78230), (5164, 39115), (6455, 31292), (7823, 25820), (12910, 15646)]