31378928

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9661}}^1$

素因数の和:9705

約数の個数: 40

約数和(自身を含む): 71885280

約数和(自身を除く): 40506352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 9661, 19322, 38644, 67627, 77288, 135254, 154576, 270508, 280169, 541016, 560338, 1082032, 1120676, 1961183, 2241352, 3922366, 4482704, 7844732, 15689464, 31378928]

約数ペア:

[(1, 31378928), (2, 15689464), (4, 7844732), (7, 4482704), (8, 3922366), (14, 2241352), (16, 1961183), (28, 1120676), (29, 1082032), (56, 560338), (58, 541016), (112, 280169), (116, 270508), (203, 154576), (232, 135254), (406, 77288), (464, 67627), (812, 38644), (1624, 19322), (3248, 9661)]