9780128

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{9859}}^1$

素因数の和:9900

約数の個数: 24

約数和(自身を含む): 19877760

約数和(自身を除く): 10097632

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 9859, 19718, 39436, 78872, 157744, 305629, 315488, 611258, 1222516, 2445032, 4890064, 9780128]

約数ペア:

[(1, 9780128), (2, 4890064), (4, 2445032), (8, 1222516), (16, 611258), (31, 315488), (32, 305629), (62, 157744), (124, 78872), (248, 39436), (496, 19718), (992, 9859)]