19111980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{8609}}^1$

素因数の和:8658

約数の個数: 48

約数和(自身を含む): 54966240

約数和(自身を除く): 35854260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 8609, 17218, 25827, 34436, 43045, 51654, 86090, 103308, 129135, 172180, 258270, 318533, 516540, 637066, 955599, 1274132, 1592665, 1911198, 3185330, 3822396, 4777995, 6370660, 9555990, 19111980]

約数ペア:

[(1, 19111980), (2, 9555990), (3, 6370660), (4, 4777995), (5, 3822396), (6, 3185330), (10, 1911198), (12, 1592665), (15, 1274132), (20, 955599), (30, 637066), (37, 516540), (60, 318533), (74, 258270), (111, 172180), (148, 129135), (185, 103308), (222, 86090), (370, 51654), (444, 43045), (555, 34436), (740, 25827), (1110, 17218), (2220, 8609)]