81445428

素因数分解:

$2^2\times 3^2\times {\mathrm{113}}^1\times {\mathrm{20021}}^1$

素因数の和:20144

約数の個数: 36

約数和(自身を含む): 207708228

約数和(自身を除く): 126262800

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 113, 226, 339, 452, 678, 1017, 1356, 2034, 4068, 20021, 40042, 60063, 80084, 120126, 180189, 240252, 360378, 720756, 2262373, 4524746, 6787119, 9049492, 13574238, 20361357, 27148476, 40722714, 81445428]

約数ペア:

[(1, 81445428), (2, 40722714), (3, 27148476), (4, 20361357), (6, 13574238), (9, 9049492), (12, 6787119), (18, 4524746), (36, 2262373), (113, 720756), (226, 360378), (339, 240252), (452, 180189), (678, 120126), (1017, 80084), (1356, 60063), (2034, 40042), (4068, 20021)]