17963740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1153}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 40713120

約数和(自身を除く): 22749380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1153, 1558, 2306, 3116, 3895, 4612, 5765, 7790, 11530, 15580, 21907, 23060, 43814, 47273, 87628, 94546, 109535, 189092, 219070, 236365, 438140, 472730, 898187, 945460, 1796374, 3592748, 4490935, 8981870, 17963740]

約数ペア:

[(1, 17963740), (2, 8981870), (4, 4490935), (5, 3592748), (10, 1796374), (19, 945460), (20, 898187), (38, 472730), (41, 438140), (76, 236365), (82, 219070), (95, 189092), (164, 109535), (190, 94546), (205, 87628), (380, 47273), (410, 43814), (779, 23060), (820, 21907), (1153, 15580), (1558, 11530), (2306, 7790), (3116, 5765), (3895, 4612)]