31137990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79841}}^1$

素因数の和:79864

約数の個数: 32

約数和(自身を含む): 80480736

約数和(自身を除く): 49342746

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 79841, 159682, 239523, 399205, 479046, 798410, 1037933, 1197615, 2075866, 2395230, 3113799, 5189665, 6227598, 10379330, 15568995, 31137990]

約数ペア:

[(1, 31137990), (2, 15568995), (3, 10379330), (5, 6227598), (6, 5189665), (10, 3113799), (13, 2395230), (15, 2075866), (26, 1197615), (30, 1037933), (39, 798410), (65, 479046), (78, 399205), (130, 239523), (195, 159682), (390, 79841)]