19719968

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:337

約数の個数: 48

約数和(自身を含む): 40674816

約数和(自身を除く): 20954848

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 103, 124, 193, 206, 248, 386, 412, 496, 772, 824, 992, 1544, 1648, 3088, 3193, 3296, 5983, 6176, 6386, 11966, 12772, 19879, 23932, 25544, 39758, 47864, 51088, 79516, 95728, 102176, 159032, 191456, 318064, 616249, 636128, 1232498, 2464996, 4929992, 9859984, 19719968]

約数ペア:

[(1, 19719968), (2, 9859984), (4, 4929992), (8, 2464996), (16, 1232498), (31, 636128), (32, 616249), (62, 318064), (103, 191456), (124, 159032), (193, 102176), (206, 95728), (248, 79516), (386, 51088), (412, 47864), (496, 39758), (772, 25544), (824, 23932), (992, 19879), (1544, 12772), (1648, 11966), (3088, 6386), (3193, 6176), (3296, 5983)]