28877680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27767}}^1$

素因数の和:27793

約数の個数: 40

約数和(自身を含む): 72307872

約数和(自身を除く): 43430192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27767, 55534, 111068, 138835, 222136, 277670, 360971, 444272, 555340, 721942, 1110680, 1443884, 1804855, 2221360, 2887768, 3609710, 5775536, 7219420, 14438840, 28877680]

約数ペア:

[(1, 28877680), (2, 14438840), (4, 7219420), (5, 5775536), (8, 3609710), (10, 2887768), (13, 2221360), (16, 1804855), (20, 1443884), (26, 1110680), (40, 721942), (52, 555340), (65, 444272), (80, 360971), (104, 277670), (130, 222136), (208, 138835), (260, 111068), (520, 55534), (1040, 27767)]