18479020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6947}}^1$

素因数の和:6982

約数の個数: 48

約数和(自身を含む): 46690560

約数和(自身を除く): 28211540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 6947, 13894, 27788, 34735, 48629, 69470, 97258, 131993, 138940, 194516, 243145, 263986, 486290, 527972, 659965, 923951, 972580, 1319930, 1847902, 2639860, 3695804, 4619755, 9239510, 18479020]

約数ペア:

[(1, 18479020), (2, 9239510), (4, 4619755), (5, 3695804), (7, 2639860), (10, 1847902), (14, 1319930), (19, 972580), (20, 923951), (28, 659965), (35, 527972), (38, 486290), (70, 263986), (76, 243145), (95, 194516), (133, 138940), (140, 131993), (190, 97258), (266, 69470), (380, 48629), (532, 34735), (665, 27788), (1330, 13894), (2660, 6947)]