20346789640

素因数分解:

$2^3\times 5^1\times {\mathrm{9349}}^1\times {\mathrm{54409}}^1$

素因数の和:63769

約数の個数: 32

約数和(自身を含む): 45786015000

約数和(自身を除く): 25439225360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9349, 18698, 37396, 46745, 54409, 74792, 93490, 108818, 186980, 217636, 272045, 373960, 435272, 544090, 1088180, 2176360, 508669741, 1017339482, 2034678964, 2543348705, 4069357928, 5086697410, 10173394820, 20346789640]

約数ペア:

[(1, 20346789640), (2, 10173394820), (4, 5086697410), (5, 4069357928), (8, 2543348705), (10, 2034678964), (20, 1017339482), (40, 508669741), (9349, 2176360), (18698, 1088180), (37396, 544090), (46745, 435272), (54409, 373960), (74792, 272045), (93490, 217636), (108818, 186980)]