3940144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1037

約数の個数: 40

約数和(自身を含む): 8662640

約数和(自身を除く): 4722496

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 997, 1976, 1994, 3952, 3988, 7976, 12961, 15952, 18943, 25922, 37886, 51844, 75772, 103688, 151544, 207376, 246259, 303088, 492518, 985036, 1970072, 3940144]

約数ペア:

[(1, 3940144), (2, 1970072), (4, 985036), (8, 492518), (13, 303088), (16, 246259), (19, 207376), (26, 151544), (38, 103688), (52, 75772), (76, 51844), (104, 37886), (152, 25922), (208, 18943), (247, 15952), (304, 12961), (494, 7976), (988, 3988), (997, 3952), (1976, 1994)]