12840040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11069}}^1$

素因数の和:11109

約数の個数: 32

約数和(自身を含む): 29889000

約数和(自身を除く): 17048960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 11069, 22138, 44276, 55345, 88552, 110690, 221380, 321001, 442760, 642002, 1284004, 1605005, 2568008, 3210010, 6420020, 12840040]

約数ペア:

[(1, 12840040), (2, 6420020), (4, 3210010), (5, 2568008), (8, 1605005), (10, 1284004), (20, 642002), (29, 442760), (40, 321001), (58, 221380), (116, 110690), (145, 88552), (232, 55345), (290, 44276), (580, 22138), (1160, 11069)]