28140015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{523}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 47990016

約数和(自身を除く): 19850001

約数列:

[1, 3, 5, 15, 17, 51, 85, 211, 255, 523, 633, 1055, 1569, 2615, 3165, 3587, 7845, 8891, 10761, 17935, 26673, 44455, 53805, 110353, 133365, 331059, 551765, 1655295, 1876001, 5628003, 9380005, 28140015]

約数ペア:

[(1, 28140015), (3, 9380005), (5, 5628003), (15, 1876001), (17, 1655295), (51, 551765), (85, 331059), (211, 133365), (255, 110353), (523, 53805), (633, 44455), (1055, 26673), (1569, 17935), (2615, 10761), (3165, 8891), (3587, 7845)]