8638240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4153}}^1$

素因数の和:4181

約数の個数: 48

約数和(自身を含む): 21982968

約数和(自身を除く): 13344728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 4153, 8306, 16612, 20765, 33224, 41530, 53989, 66448, 83060, 107978, 132896, 166120, 215956, 269945, 332240, 431912, 539890, 664480, 863824, 1079780, 1727648, 2159560, 4319120, 8638240]

約数ペア:

[(1, 8638240), (2, 4319120), (4, 2159560), (5, 1727648), (8, 1079780), (10, 863824), (13, 664480), (16, 539890), (20, 431912), (26, 332240), (32, 269945), (40, 215956), (52, 166120), (65, 132896), (80, 107978), (104, 83060), (130, 66448), (160, 53989), (208, 41530), (260, 33224), (416, 20765), (520, 16612), (1040, 8306), (2080, 4153)]