20757390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16091}}^1$

素因数の和:16144

約数の個数: 32

約数和(自身を含む): 50979456

約数和(自身を除く): 30222066

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16091, 32182, 48273, 80455, 96546, 160910, 241365, 482730, 691913, 1383826, 2075739, 3459565, 4151478, 6919130, 10378695, 20757390]

約数ペア:

[(1, 20757390), (2, 10378695), (3, 6919130), (5, 4151478), (6, 3459565), (10, 2075739), (15, 1383826), (30, 691913), (43, 482730), (86, 241365), (129, 160910), (215, 96546), (258, 80455), (430, 48273), (645, 32182), (1290, 16091)]