1388409616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{15809}}^1$

素因数の和:16327

約数の個数: 40

約数和(自身を含む): 2940660000

約数和(自身を除く): 1552250384

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 499, 998, 1996, 3992, 5489, 7984, 10978, 15809, 21956, 31618, 43912, 63236, 87824, 126472, 173899, 252944, 347798, 695596, 1391192, 2782384, 7888691, 15777382, 31554764, 63109528, 86775601, 126219056, 173551202, 347102404, 694204808, 1388409616]

約数ペア:

[(1, 1388409616), (2, 694204808), (4, 347102404), (8, 173551202), (11, 126219056), (16, 86775601), (22, 63109528), (44, 31554764), (88, 15777382), (176, 7888691), (499, 2782384), (998, 1391192), (1996, 695596), (3992, 347798), (5489, 252944), (7984, 173899), (10978, 126472), (15809, 87824), (21956, 63236), (31618, 43912)]