15278840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{7207}}^1$

素因数の和:7271

約数の個数: 32

約数和(自身を含む): 35030880

約数和(自身を除く): 19752040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 7207, 14414, 28828, 36035, 57656, 72070, 144140, 288280, 381971, 763942, 1527884, 1909855, 3055768, 3819710, 7639420, 15278840]

約数ペア:

[(1, 15278840), (2, 7639420), (4, 3819710), (5, 3055768), (8, 1909855), (10, 1527884), (20, 763942), (40, 381971), (53, 288280), (106, 144140), (212, 72070), (265, 57656), (424, 36035), (530, 28828), (1060, 14414), (2120, 7207)]