20199553885

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1\times {\mathrm{15287}}^1$

素因数の和:17305

約数の個数: 32

約数和(自身を含む): 29176842240

約数和(自身を除く): 8977288355

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 1987, 9935, 13909, 15287, 37753, 69545, 76435, 107009, 188765, 264271, 290453, 535045, 1321355, 1452265, 2033171, 10165855, 30375269, 151876345, 212626883, 577130111, 1063134415, 2885650555, 4039910777, 20199553885]

約数ペア:

[(1, 20199553885), (5, 4039910777), (7, 2885650555), (19, 1063134415), (35, 577130111), (95, 212626883), (133, 151876345), (665, 30375269), (1987, 10165855), (9935, 2033171), (13909, 1452265), (15287, 1321355), (37753, 535045), (69545, 290453), (76435, 264271), (107009, 188765)]