2219210

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{647}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 4665600

約数和(自身を除く): 2446390

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 647, 686, 1294, 1715, 3235, 3430, 4529, 6470, 9058, 22645, 31703, 45290, 63406, 158515, 221921, 317030, 443842, 1109605, 2219210]

約数ペア:

[(1, 2219210), (2, 1109605), (5, 443842), (7, 317030), (10, 221921), (14, 158515), (35, 63406), (49, 45290), (70, 31703), (98, 22645), (245, 9058), (343, 6470), (490, 4529), (647, 3430), (686, 3235), (1294, 1715)]