20577380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54151}}^1$

素因数の和:54179

約数の個数: 24

約数和(自身を含む): 45487680

約数和(自身を除く): 24910300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54151, 108302, 216604, 270755, 541510, 1028869, 1083020, 2057738, 4115476, 5144345, 10288690, 20577380]

約数ペア:

[(1, 20577380), (2, 10288690), (4, 5144345), (5, 4115476), (10, 2057738), (19, 1083020), (20, 1028869), (38, 541510), (76, 270755), (95, 216604), (190, 108302), (380, 54151)]