289380715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1019}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 397897920

約数和(自身を除く): 108517205

約数列:

[1, 5, 13, 17, 65, 85, 221, 257, 1019, 1105, 1285, 3341, 4369, 5095, 13247, 16705, 17323, 21845, 56797, 66235, 86615, 225199, 261883, 283985, 1125995, 1309415, 3404479, 4452011, 17022395, 22260055, 57876143, 289380715]

約数ペア:

[(1, 289380715), (5, 57876143), (13, 22260055), (17, 17022395), (65, 4452011), (85, 3404479), (221, 1309415), (257, 1125995), (1019, 283985), (1105, 261883), (1285, 225199), (3341, 86615), (4369, 66235), (5095, 56797), (13247, 21845), (16705, 17323)]