25212920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20333}}^1$

素因数の和:20375

約数の個数: 32

約数和(自身を含む): 58561920

約数和(自身を除く): 33349000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 20333, 40666, 81332, 101665, 162664, 203330, 406660, 630323, 813320, 1260646, 2521292, 3151615, 5042584, 6303230, 12606460, 25212920]

約数ペア:

[(1, 25212920), (2, 12606460), (4, 6303230), (5, 5042584), (8, 3151615), (10, 2521292), (20, 1260646), (31, 813320), (40, 630323), (62, 406660), (124, 203330), (155, 162664), (248, 101665), (310, 81332), (620, 40666), (1240, 20333)]