399331376

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{4051}}^1$

素因数の和:4221

約数の個数: 40

約数和(自身を含む): 794370288

約数和(自身を除く): 395038912

約数列:

[1, 2, 4, 8, 16, 61, 101, 122, 202, 244, 404, 488, 808, 976, 1616, 4051, 6161, 8102, 12322, 16204, 24644, 32408, 49288, 64816, 98576, 247111, 409151, 494222, 818302, 988444, 1636604, 1976888, 3273208, 3953776, 6546416, 24958211, 49916422, 99832844, 199665688, 399331376]

約数ペア:

[(1, 399331376), (2, 199665688), (4, 99832844), (8, 49916422), (16, 24958211), (61, 6546416), (101, 3953776), (122, 3273208), (202, 1976888), (244, 1636604), (404, 988444), (488, 818302), (808, 494222), (976, 409151), (1616, 247111), (4051, 98576), (6161, 64816), (8102, 49288), (12322, 32408), (16204, 24644)]