1990372605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{237373}}^1$

素因数の和:237437

約数の個数: 32

約数和(自身を含む): 3509337216

約数和(自身を除く): 1518964611

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2795, 8385, 237373, 712119, 1186865, 3085849, 3560595, 9257547, 10207039, 15429245, 30621117, 46287735, 51035195, 132691507, 153105585, 398074521, 663457535, 1990372605]

約数ペア:

[(1, 1990372605), (3, 663457535), (5, 398074521), (13, 153105585), (15, 132691507), (39, 51035195), (43, 46287735), (65, 30621117), (129, 15429245), (195, 10207039), (215, 9257547), (559, 3560595), (645, 3085849), (1677, 1186865), (2795, 712119), (8385, 237373)]