67356980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 145152000

約数和(自身を除く): 77795020

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 316, 356, 395, 445, 479, 790, 890, 958, 1580, 1780, 1916, 2395, 4790, 7031, 9580, 14062, 28124, 35155, 37841, 42631, 70310, 75682, 85262, 140620, 151364, 170524, 189205, 213155, 378410, 426310, 756820, 852620, 3367849, 6735698, 13471396, 16839245, 33678490, 67356980]

約数ペア:

[(1, 67356980), (2, 33678490), (4, 16839245), (5, 13471396), (10, 6735698), (20, 3367849), (79, 852620), (89, 756820), (158, 426310), (178, 378410), (316, 213155), (356, 189205), (395, 170524), (445, 151364), (479, 140620), (790, 85262), (890, 75682), (958, 70310), (1580, 42631), (1780, 37841), (1916, 35155), (2395, 28124), (4790, 14062), (7031, 9580)]