40091320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18911}}^1$

素因数の和:18975

約数の個数: 32

約数和(自身を含む): 91912320

約数和(自身を除く): 51821000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 18911, 37822, 75644, 94555, 151288, 189110, 378220, 756440, 1002283, 2004566, 4009132, 5011415, 8018264, 10022830, 20045660, 40091320]

約数ペア:

[(1, 40091320), (2, 20045660), (4, 10022830), (5, 8018264), (8, 5011415), (10, 4009132), (20, 2004566), (40, 1002283), (53, 756440), (106, 378220), (212, 189110), (265, 151288), (424, 94555), (530, 75644), (1060, 37822), (2120, 18911)]