19677780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109321}}^1$

素因数の和:109336

約数の個数: 36

約数和(自身を含む): 59689812

約数和(自身を除く): 40012032

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109321, 218642, 327963, 437284, 546605, 655926, 983889, 1093210, 1311852, 1639815, 1967778, 2186420, 3279630, 3935556, 4919445, 6559260, 9838890, 19677780]

約数ペア:

[(1, 19677780), (2, 9838890), (3, 6559260), (4, 4919445), (5, 3935556), (6, 3279630), (9, 2186420), (10, 1967778), (12, 1639815), (15, 1311852), (18, 1093210), (20, 983889), (30, 655926), (36, 546605), (45, 437284), (60, 327963), (90, 218642), (180, 109321)]