18875290

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5503}}^1$

素因数の和:5531

約数の個数: 32

約数和(自身を含む): 39628800

約数和(自身を除く): 20753510

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5503, 11006, 27515, 38521, 55030, 77042, 192605, 269647, 385210, 539294, 1348235, 1887529, 2696470, 3775058, 9437645, 18875290]

約数ペア:

[(1, 18875290), (2, 9437645), (5, 3775058), (7, 2696470), (10, 1887529), (14, 1348235), (35, 539294), (49, 385210), (70, 269647), (98, 192605), (245, 77042), (343, 55030), (490, 38521), (686, 27515), (1715, 11006), (3430, 5503)]