138911560

素因数分解:

$2^3\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{2153}}^1$

素因数の和:3777

約数の個数: 32

約数和(自身を含む): 312890040

約数和(自身を除く): 173978480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1613, 2153, 3226, 4306, 6452, 8065, 8612, 10765, 12904, 16130, 17224, 21530, 32260, 43060, 64520, 86120, 3472789, 6945578, 13891156, 17363945, 27782312, 34727890, 69455780, 138911560]

約数ペア:

[(1, 138911560), (2, 69455780), (4, 34727890), (5, 27782312), (8, 17363945), (10, 13891156), (20, 6945578), (40, 3472789), (1613, 86120), (2153, 64520), (3226, 43060), (4306, 32260), (6452, 21530), (8065, 17224), (8612, 16130), (10765, 12904)]