31858710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81689}}^1$

素因数の和:81712

約数の個数: 32

約数和(自身を含む): 82343520

約数和(自身を除く): 50484810

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 81689, 163378, 245067, 408445, 490134, 816890, 1061957, 1225335, 2123914, 2450670, 3185871, 5309785, 6371742, 10619570, 15929355, 31858710]

約数ペア:

[(1, 31858710), (2, 15929355), (3, 10619570), (5, 6371742), (6, 5309785), (10, 3185871), (13, 2450670), (15, 2123914), (26, 1225335), (30, 1061957), (39, 816890), (65, 490134), (78, 408445), (130, 245067), (195, 163378), (390, 81689)]