20128510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{709}}^1$

素因数の和:900

約数の個数: 32

約数和(自身を含む): 38646720

約数和(自身を除く): 18518210

約数列:

[1, 2, 5, 10, 17, 34, 85, 167, 170, 334, 709, 835, 1418, 1670, 2839, 3545, 5678, 7090, 12053, 14195, 24106, 28390, 60265, 118403, 120530, 236806, 592015, 1184030, 2012851, 4025702, 10064255, 20128510]

約数ペア:

[(1, 20128510), (2, 10064255), (5, 4025702), (10, 2012851), (17, 1184030), (34, 592015), (85, 236806), (167, 120530), (170, 118403), (334, 60265), (709, 28390), (835, 24106), (1418, 14195), (1670, 12053), (2839, 7090), (3545, 5678)]