42991310

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 78835680

約数和(自身を除く): 35844370

約数列:

[1, 2, 5, 10, 139, 157, 197, 278, 314, 394, 695, 785, 985, 1390, 1570, 1970, 21823, 27383, 30929, 43646, 54766, 61858, 109115, 136915, 154645, 218230, 273830, 309290, 4299131, 8598262, 21495655, 42991310]

約数ペア:

[(1, 42991310), (2, 21495655), (5, 8598262), (10, 4299131), (139, 309290), (157, 273830), (197, 218230), (278, 154645), (314, 136915), (394, 109115), (695, 61858), (785, 54766), (985, 43646), (1390, 30929), (1570, 27383), (1970, 21823)]