18871260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{769}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 53037600

約数和(自身を除く): 34166340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 769, 818, 1227, 1538, 1636, 2045, 2307, 2454, 3076, 3845, 4090, 4614, 4908, 6135, 7690, 8180, 9228, 11535, 12270, 15380, 23070, 24540, 46140, 314521, 629042, 943563, 1258084, 1572605, 1887126, 3145210, 3774252, 4717815, 6290420, 9435630, 18871260]

約数ペア:

[(1, 18871260), (2, 9435630), (3, 6290420), (4, 4717815), (5, 3774252), (6, 3145210), (10, 1887126), (12, 1572605), (15, 1258084), (20, 943563), (30, 629042), (60, 314521), (409, 46140), (769, 24540), (818, 23070), (1227, 15380), (1538, 12270), (1636, 11535), (2045, 9228), (2307, 8180), (2454, 7690), (3076, 6135), (3845, 4908), (4090, 4614)]