25290915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5639}}^1$

素因数の和:5683

約数の個数: 32

約数和(自身を含む): 45480960

約数和(自身を除く): 20190045

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 5639, 16917, 28195, 73307, 84585, 129697, 219921, 366535, 389091, 648485, 1099605, 1686061, 1945455, 5058183, 8430305, 25290915]

約数ペア:

[(1, 25290915), (3, 8430305), (5, 5058183), (13, 1945455), (15, 1686061), (23, 1099605), (39, 648485), (65, 389091), (69, 366535), (115, 219921), (195, 129697), (299, 84585), (345, 73307), (897, 28195), (1495, 16917), (4485, 5639)]