240780865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{311}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 320576256

約数和(自身を除く): 79795391

約数列:

[1, 5, 13, 43, 65, 215, 277, 311, 559, 1385, 1555, 2795, 3601, 4043, 11911, 13373, 18005, 20215, 59555, 66865, 86147, 154843, 173849, 430735, 774215, 869245, 1119911, 3704321, 5599555, 18521605, 48156173, 240780865]

約数ペア:

[(1, 240780865), (5, 48156173), (13, 18521605), (43, 5599555), (65, 3704321), (215, 1119911), (277, 869245), (311, 774215), (559, 430735), (1385, 173849), (1555, 154843), (2795, 86147), (3601, 66865), (4043, 59555), (11911, 20215), (13373, 18005)]