421000400

素因数分解:

$2^4\times 5^2\times {\mathrm{59}}^1\times {\mathrm{17839}}^1$

素因数の和:17916

約数の個数: 60

約数和(自身を含む): 1028654400

約数和(自身を除く): 607654000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 100, 118, 200, 236, 295, 400, 472, 590, 944, 1180, 1475, 2360, 2950, 4720, 5900, 11800, 17839, 23600, 35678, 71356, 89195, 142712, 178390, 285424, 356780, 445975, 713560, 891950, 1052501, 1427120, 1783900, 2105002, 3567800, 4210004, 5262505, 7135600, 8420008, 10525010, 16840016, 21050020, 26312525, 42100040, 52625050, 84200080, 105250100, 210500200, 421000400]

約数ペア:

[(1, 421000400), (2, 210500200), (4, 105250100), (5, 84200080), (8, 52625050), (10, 42100040), (16, 26312525), (20, 21050020), (25, 16840016), (40, 10525010), (50, 8420008), (59, 7135600), (80, 5262505), (100, 4210004), (118, 3567800), (200, 2105002), (236, 1783900), (295, 1427120), (400, 1052501), (472, 891950), (590, 713560), (944, 445975), (1180, 356780), (1475, 285424), (2360, 178390), (2950, 142712), (4720, 89195), (5900, 71356), (11800, 35678), (17839, 23600)]