20123404580

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{64693}}^1$

素因数の和:64956

約数の個数: 48

約数和(自身を含む): 42952675584

約数和(自身を除く): 22829271004

約数列:

[1, 2, 4, 5, 10, 20, 103, 151, 206, 302, 412, 515, 604, 755, 1030, 1510, 2060, 3020, 15553, 31106, 62212, 64693, 77765, 129386, 155530, 258772, 311060, 323465, 646930, 1293860, 6663379, 9768643, 13326758, 19537286, 26653516, 33316895, 39074572, 48843215, 66633790, 97686430, 133267580, 195372860, 1006170229, 2012340458, 4024680916, 5030851145, 10061702290, 20123404580]

約数ペア:

[(1, 20123404580), (2, 10061702290), (4, 5030851145), (5, 4024680916), (10, 2012340458), (20, 1006170229), (103, 195372860), (151, 133267580), (206, 97686430), (302, 66633790), (412, 48843215), (515, 39074572), (604, 33316895), (755, 26653516), (1030, 19537286), (1510, 13326758), (2060, 9768643), (3020, 6663379), (15553, 1293860), (31106, 646930), (62212, 323465), (64693, 311060), (77765, 258772), (129386, 155530)]