26969020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 62717760

約数和(自身を除く): 35748740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 101, 130, 158, 169, 202, 260, 316, 338, 395, 404, 505, 676, 790, 845, 1010, 1027, 1313, 1580, 1690, 2020, 2054, 2626, 3380, 4108, 5135, 5252, 6565, 7979, 10270, 13130, 13351, 15958, 17069, 20540, 26260, 26702, 31916, 34138, 39895, 53404, 66755, 68276, 79790, 85345, 103727, 133510, 159580, 170690, 207454, 267020, 341380, 414908, 518635, 1037270, 1348451, 2074540, 2696902, 5393804, 6742255, 13484510, 26969020]

約数ペア:

[(1, 26969020), (2, 13484510), (4, 6742255), (5, 5393804), (10, 2696902), (13, 2074540), (20, 1348451), (26, 1037270), (52, 518635), (65, 414908), (79, 341380), (101, 267020), (130, 207454), (158, 170690), (169, 159580), (202, 133510), (260, 103727), (316, 85345), (338, 79790), (395, 68276), (404, 66755), (505, 53404), (676, 39895), (790, 34138), (845, 31916), (1010, 26702), (1027, 26260), (1313, 20540), (1580, 17069), (1690, 15958), (2020, 13351), (2054, 13130), (2626, 10270), (3380, 7979), (4108, 6565), (5135, 5252)]