20123570

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 37806912

約数和(自身を除く): 17683342

約数列:

[1, 2, 5, 10, 43, 53, 86, 106, 215, 265, 430, 530, 883, 1766, 2279, 4415, 4558, 8830, 11395, 22790, 37969, 46799, 75938, 93598, 189845, 233995, 379690, 467990, 2012357, 4024714, 10061785, 20123570]

約数ペア:

[(1, 20123570), (2, 10061785), (5, 4024714), (10, 2012357), (43, 467990), (53, 379690), (86, 233995), (106, 189845), (215, 93598), (265, 75938), (430, 46799), (530, 37969), (883, 22790), (1766, 11395), (2279, 8830), (4415, 4558)]