18612280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 44945280

約数和(自身を除く): 26333000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 271, 340, 404, 505, 542, 680, 808, 1010, 1084, 1355, 1717, 2020, 2168, 2710, 3434, 4040, 4607, 5420, 6868, 8585, 9214, 10840, 13736, 17170, 18428, 23035, 27371, 34340, 36856, 46070, 54742, 68680, 92140, 109484, 136855, 184280, 218968, 273710, 465307, 547420, 930614, 1094840, 1861228, 2326535, 3722456, 4653070, 9306140, 18612280]

約数ペア:

[(1, 18612280), (2, 9306140), (4, 4653070), (5, 3722456), (8, 2326535), (10, 1861228), (17, 1094840), (20, 930614), (34, 547420), (40, 465307), (68, 273710), (85, 218968), (101, 184280), (136, 136855), (170, 109484), (202, 92140), (271, 68680), (340, 54742), (404, 46070), (505, 36856), (542, 34340), (680, 27371), (808, 23035), (1010, 18428), (1084, 17170), (1355, 13736), (1717, 10840), (2020, 9214), (2168, 8585), (2710, 6868), (3434, 5420), (4040, 4607)]