243553480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{99817}}^1$

素因数の和:99889

約数の個数: 32

約数和(自身を含む): 556984440

約数和(自身を除く): 313430960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 99817, 199634, 399268, 499085, 798536, 998170, 1996340, 3992680, 6088837, 12177674, 24355348, 30444185, 48710696, 60888370, 121776740, 243553480]

約数ペア:

[(1, 243553480), (2, 121776740), (4, 60888370), (5, 48710696), (8, 30444185), (10, 24355348), (20, 12177674), (40, 6088837), (61, 3992680), (122, 1996340), (244, 998170), (305, 798536), (488, 499085), (610, 399268), (1220, 199634), (2440, 99817)]