28252120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54331}}^1$

素因数の和:54355

約数の個数: 32

約数和(自身を含む): 68458320

約数和(自身を除く): 40206200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54331, 108662, 217324, 271655, 434648, 543310, 706303, 1086620, 1412606, 2173240, 2825212, 3531515, 5650424, 7063030, 14126060, 28252120]

約数ペア:

[(1, 28252120), (2, 14126060), (4, 7063030), (5, 5650424), (8, 3531515), (10, 2825212), (13, 2173240), (20, 1412606), (26, 1086620), (40, 706303), (52, 543310), (65, 434648), (104, 271655), (130, 217324), (260, 108662), (520, 54331)]