18158420

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2647}}^1$

素因数の和:2677

約数の個数: 48

約数和(自身を含む): 44486400

約数和(自身を除く): 26327980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2647, 3430, 5294, 6860, 10588, 13235, 18529, 26470, 37058, 52940, 74116, 92645, 129703, 185290, 259406, 370580, 518812, 648515, 907921, 1297030, 1815842, 2594060, 3631684, 4539605, 9079210, 18158420]

約数ペア:

[(1, 18158420), (2, 9079210), (4, 4539605), (5, 3631684), (7, 2594060), (10, 1815842), (14, 1297030), (20, 907921), (28, 648515), (35, 518812), (49, 370580), (70, 259406), (98, 185290), (140, 129703), (196, 92645), (245, 74116), (343, 52940), (490, 37058), (686, 26470), (980, 18529), (1372, 13235), (1715, 10588), (2647, 6860), (3430, 5294)]