220847985

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{23041}}^1$

素因数の和:23126

約数の個数: 32

約数和(自身を含む): 398165760

約数和(自身を除く): 177317775

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 3195, 9585, 23041, 69123, 115205, 207369, 345615, 622107, 1036845, 1635911, 3110535, 4907733, 8179555, 14723199, 24538665, 44169597, 73615995, 220847985]

約数ペア:

[(1, 220847985), (3, 73615995), (5, 44169597), (9, 24538665), (15, 14723199), (27, 8179555), (45, 4907733), (71, 3110535), (135, 1635911), (213, 1036845), (355, 622107), (639, 345615), (1065, 207369), (1917, 115205), (3195, 69123), (9585, 23041)]