2898415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 32

約数和(自身を含む): 4124736

約数和(自身を除く): 1226321

約数列:

[1, 5, 13, 17, 43, 61, 65, 85, 215, 221, 305, 559, 731, 793, 1037, 1105, 2623, 2795, 3655, 3965, 5185, 9503, 13115, 13481, 34099, 44591, 47515, 67405, 170495, 222955, 579683, 2898415]

約数ペア:

[(1, 2898415), (5, 579683), (13, 222955), (17, 170495), (43, 67405), (61, 47515), (65, 44591), (85, 34099), (215, 13481), (221, 13115), (305, 9503), (559, 5185), (731, 3965), (793, 3655), (1037, 2795), (1105, 2623)]