1390291240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2673637}}^1$

素因数の和:2673661

約数の個数: 32

約数和(自身を含む): 3368783880

約数和(自身を除く): 1978492640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2673637, 5347274, 10694548, 13368185, 21389096, 26736370, 34757281, 53472740, 69514562, 106945480, 139029124, 173786405, 278058248, 347572810, 695145620, 1390291240]

約数ペア:

[(1, 1390291240), (2, 695145620), (4, 347572810), (5, 278058248), (8, 173786405), (10, 139029124), (13, 106945480), (20, 69514562), (26, 53472740), (40, 34757281), (52, 26736370), (65, 21389096), (104, 13368185), (130, 10694548), (260, 5347274), (520, 2673637)]