20801365

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 27406080

約数和(自身を除く): 6604715

約数列:

[1, 5, 13, 65, 103, 169, 239, 515, 845, 1195, 1339, 3107, 6695, 15535, 17407, 24617, 40391, 87035, 123085, 201955, 320021, 1600105, 4160273, 20801365]

約数ペア:

[(1, 20801365), (5, 4160273), (13, 1600105), (65, 320021), (103, 201955), (169, 123085), (239, 87035), (515, 40391), (845, 24617), (1195, 17407), (1339, 15535), (3107, 6695)]