20535728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{733}}^1$

素因数の和:861

約数の個数: 40

約数和(自身を含む): 42595488

約数和(自身を除く): 22059760

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 103, 136, 206, 272, 412, 733, 824, 1466, 1648, 1751, 2932, 3502, 5864, 7004, 11728, 12461, 14008, 24922, 28016, 49844, 75499, 99688, 150998, 199376, 301996, 603992, 1207984, 1283483, 2566966, 5133932, 10267864, 20535728]

約数ペア:

[(1, 20535728), (2, 10267864), (4, 5133932), (8, 2566966), (16, 1283483), (17, 1207984), (34, 603992), (68, 301996), (103, 199376), (136, 150998), (206, 99688), (272, 75499), (412, 49844), (733, 28016), (824, 24922), (1466, 14008), (1648, 12461), (1751, 11728), (2932, 7004), (3502, 5864)]