81731340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454063}}^1$

素因数の和:454078

約数の個数: 36

約数和(自身を含む): 247918944

約数和(自身を除く): 166187604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454063, 908126, 1362189, 1816252, 2270315, 2724378, 4086567, 4540630, 5448756, 6810945, 8173134, 9081260, 13621890, 16346268, 20432835, 27243780, 40865670, 81731340]

約数ペア:

[(1, 81731340), (2, 40865670), (3, 27243780), (4, 20432835), (5, 16346268), (6, 13621890), (9, 9081260), (10, 8173134), (12, 6810945), (15, 5448756), (18, 4540630), (20, 4086567), (30, 2724378), (36, 2270315), (45, 1816252), (60, 1362189), (90, 908126), (180, 454063)]