218954320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{210533}}^1$

素因数の和:210559

約数の個数: 40

約数和(自身を含む): 548230536

約数和(自身を除く): 329276216

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 210533, 421066, 842132, 1052665, 1684264, 2105330, 2736929, 3368528, 4210660, 5473858, 8421320, 10947716, 13684645, 16842640, 21895432, 27369290, 43790864, 54738580, 109477160, 218954320]

約数ペア:

[(1, 218954320), (2, 109477160), (4, 54738580), (5, 43790864), (8, 27369290), (10, 21895432), (13, 16842640), (16, 13684645), (20, 10947716), (26, 8421320), (40, 5473858), (52, 4210660), (65, 3368528), (80, 2736929), (104, 2105330), (130, 1684264), (208, 1052665), (260, 842132), (520, 421066), (1040, 210533)]