20806039088

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{519943}}^1$

素因数の和:520053

約数の個数: 40

約数和(自身を含む): 41971959456

約数和(自身を除く): 21165920368

約数列:

[1, 2, 4, 8, 16, 41, 61, 82, 122, 164, 244, 328, 488, 656, 976, 2501, 5002, 10004, 20008, 40016, 519943, 1039886, 2079772, 4159544, 8319088, 21317663, 31716523, 42635326, 63433046, 85270652, 126866092, 170541304, 253732184, 341082608, 507464368, 1300377443, 2600754886, 5201509772, 10403019544, 20806039088]

約数ペア:

[(1, 20806039088), (2, 10403019544), (4, 5201509772), (8, 2600754886), (16, 1300377443), (41, 507464368), (61, 341082608), (82, 253732184), (122, 170541304), (164, 126866092), (244, 85270652), (328, 63433046), (488, 42635326), (656, 31716523), (976, 21317663), (2501, 8319088), (5002, 4159544), (10004, 2079772), (20008, 1039886), (40016, 519943)]