28683320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 67824000

約数和(自身を除く): 39140680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 79, 116, 145, 158, 232, 290, 313, 316, 395, 580, 626, 632, 790, 1160, 1252, 1565, 1580, 2291, 2504, 3130, 3160, 4582, 6260, 9077, 9164, 11455, 12520, 18154, 18328, 22910, 24727, 36308, 45385, 45820, 49454, 72616, 90770, 91640, 98908, 123635, 181540, 197816, 247270, 363080, 494540, 717083, 989080, 1434166, 2868332, 3585415, 5736664, 7170830, 14341660, 28683320]

約数ペア:

[(1, 28683320), (2, 14341660), (4, 7170830), (5, 5736664), (8, 3585415), (10, 2868332), (20, 1434166), (29, 989080), (40, 717083), (58, 494540), (79, 363080), (116, 247270), (145, 197816), (158, 181540), (232, 123635), (290, 98908), (313, 91640), (316, 90770), (395, 72616), (580, 49454), (626, 45820), (632, 45385), (790, 36308), (1160, 24727), (1252, 22910), (1565, 18328), (1580, 18154), (2291, 12520), (2504, 11455), (3130, 9164), (3160, 9077), (4582, 6260)]