19812420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110069}}^1$

素因数の和:110084

約数の個数: 36

約数和(自身を含む): 60098220

約数和(自身を除く): 40285800

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110069, 220138, 330207, 440276, 550345, 660414, 990621, 1100690, 1320828, 1651035, 1981242, 2201380, 3302070, 3962484, 4953105, 6604140, 9906210, 19812420]

約数ペア:

[(1, 19812420), (2, 9906210), (3, 6604140), (4, 4953105), (5, 3962484), (6, 3302070), (9, 2201380), (10, 1981242), (12, 1651035), (15, 1320828), (18, 1100690), (20, 990621), (30, 660414), (36, 550345), (45, 440276), (60, 330207), (90, 220138), (180, 110069)]