20807340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1451}}^1$

素因数の和:1702

約数の個数: 48

約数和(自身を含む): 58544640

約数和(自身を除く): 37737300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 239, 478, 717, 956, 1195, 1434, 1451, 2390, 2868, 2902, 3585, 4353, 4780, 5804, 7170, 7255, 8706, 14340, 14510, 17412, 21765, 29020, 43530, 87060, 346789, 693578, 1040367, 1387156, 1733945, 2080734, 3467890, 4161468, 5201835, 6935780, 10403670, 20807340]

約数ペア:

[(1, 20807340), (2, 10403670), (3, 6935780), (4, 5201835), (5, 4161468), (6, 3467890), (10, 2080734), (12, 1733945), (15, 1387156), (20, 1040367), (30, 693578), (60, 346789), (239, 87060), (478, 43530), (717, 29020), (956, 21765), (1195, 17412), (1434, 14510), (1451, 14340), (2390, 8706), (2868, 7255), (2902, 7170), (3585, 5804), (4353, 4780)]