18726260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{739}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 45252480

約数和(自身を除く): 26526220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 739, 905, 1267, 1478, 1810, 2534, 2956, 3620, 3695, 5068, 5173, 6335, 7390, 10346, 12670, 14780, 20692, 25340, 25865, 51730, 103460, 133759, 267518, 535036, 668795, 936313, 1337590, 1872626, 2675180, 3745252, 4681565, 9363130, 18726260]

約数ペア:

[(1, 18726260), (2, 9363130), (4, 4681565), (5, 3745252), (7, 2675180), (10, 1872626), (14, 1337590), (20, 936313), (28, 668795), (35, 535036), (70, 267518), (140, 133759), (181, 103460), (362, 51730), (724, 25865), (739, 25340), (905, 20692), (1267, 14780), (1478, 12670), (1810, 10346), (2534, 7390), (2956, 6335), (3620, 5173), (3695, 5068)]