28173780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156521}}^1$

素因数の和:156536

約数の個数: 36

約数和(自身を含む): 85461012

約数和(自身を除く): 57287232

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156521, 313042, 469563, 626084, 782605, 939126, 1408689, 1565210, 1878252, 2347815, 2817378, 3130420, 4695630, 5634756, 7043445, 9391260, 14086890, 28173780]

約数ペア:

[(1, 28173780), (2, 14086890), (3, 9391260), (4, 7043445), (5, 5634756), (6, 4695630), (9, 3130420), (10, 2817378), (12, 2347815), (15, 1878252), (18, 1565210), (20, 1408689), (30, 939126), (36, 782605), (45, 626084), (60, 469563), (90, 313042), (180, 156521)]