644551216

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{3571}}^1$

素因数の和:3997

約数の個数: 40

約数和(自身を含む): 1295564400

約数和(自身を除く): 651013184

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 389, 464, 778, 1556, 3112, 3571, 6224, 7142, 11281, 14284, 22562, 28568, 45124, 57136, 90248, 103559, 180496, 207118, 414236, 828472, 1389119, 1656944, 2778238, 5556476, 11112952, 22225904, 40284451, 80568902, 161137804, 322275608, 644551216]

約数ペア:

[(1, 644551216), (2, 322275608), (4, 161137804), (8, 80568902), (16, 40284451), (29, 22225904), (58, 11112952), (116, 5556476), (232, 2778238), (389, 1656944), (464, 1389119), (778, 828472), (1556, 414236), (3112, 207118), (3571, 180496), (6224, 103559), (7142, 90248), (11281, 57136), (14284, 45124), (22562, 28568)]