20565346580

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12388763}}^1$

素因数の和:12388855

約数の個数: 24

約数和(自身を含む): 43707559392

約数和(自身を除く): 23142212812

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 12388763, 24777526, 49555052, 61943815, 123887630, 247775260, 1028267329, 2056534658, 4113069316, 5141336645, 10282673290, 20565346580]

約数ペア:

[(1, 20565346580), (2, 10282673290), (4, 5141336645), (5, 4113069316), (10, 2056534658), (20, 1028267329), (83, 247775260), (166, 123887630), (332, 61943815), (415, 49555052), (830, 24777526), (1660, 12388763)]