15990544

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 32394752

約数和(自身を除く): 16404208

約数列:

[1, 2, 4, 8, 16, 31, 62, 103, 124, 206, 248, 313, 412, 496, 626, 824, 1252, 1648, 2504, 3193, 5008, 6386, 9703, 12772, 19406, 25544, 32239, 38812, 51088, 64478, 77624, 128956, 155248, 257912, 515824, 999409, 1998818, 3997636, 7995272, 15990544]

約数ペア:

[(1, 15990544), (2, 7995272), (4, 3997636), (8, 1998818), (16, 999409), (31, 515824), (62, 257912), (103, 155248), (124, 128956), (206, 77624), (248, 64478), (313, 51088), (412, 38812), (496, 32239), (626, 25544), (824, 19406), (1252, 12772), (1648, 9703), (2504, 6386), (3193, 5008)]