123953360

素因数分解:

$2^4\times 5^1\times {\mathrm{1549417}}^1$

素因数の和:1549430

約数の個数: 20

約数和(自身を含む): 288191748

約数和(自身を除く): 164238388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1549417, 3098834, 6197668, 7747085, 12395336, 15494170, 24790672, 30988340, 61976680, 123953360]

約数ペア:

[(1, 123953360), (2, 61976680), (4, 30988340), (5, 24790672), (8, 15494170), (10, 12395336), (16, 7747085), (20, 6197668), (40, 3098834), (80, 1549417)]