28140748

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 54208000

約数和(自身を除く): 26067252

約数列:

[1, 2, 4, 19, 38, 43, 76, 79, 86, 109, 158, 172, 218, 316, 436, 817, 1501, 1634, 2071, 3002, 3268, 3397, 4142, 4687, 6004, 6794, 8284, 8611, 9374, 13588, 17222, 18748, 34444, 64543, 89053, 129086, 163609, 178106, 258172, 327218, 356212, 370273, 654436, 740546, 1481092, 7035187, 14070374, 28140748]

約数ペア:

[(1, 28140748), (2, 14070374), (4, 7035187), (19, 1481092), (38, 740546), (43, 654436), (76, 370273), (79, 356212), (86, 327218), (109, 258172), (158, 178106), (172, 163609), (218, 129086), (316, 89053), (436, 64543), (817, 34444), (1501, 18748), (1634, 17222), (2071, 13588), (3002, 9374), (3268, 8611), (3397, 8284), (4142, 6794), (4687, 6004)]