31794520

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{2131}}^1$

素因数の和:2515

約数の個数: 32

約数和(自身を含む): 71763120

約数和(自身を除く): 39968600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1492, 1865, 2131, 2984, 3730, 4262, 7460, 8524, 10655, 14920, 17048, 21310, 42620, 85240, 794863, 1589726, 3179452, 3974315, 6358904, 7948630, 15897260, 31794520]

約数ペア:

[(1, 31794520), (2, 15897260), (4, 7948630), (5, 6358904), (8, 3974315), (10, 3179452), (20, 1589726), (40, 794863), (373, 85240), (746, 42620), (1492, 21310), (1865, 17048), (2131, 14920), (2984, 10655), (3730, 8524), (4262, 7460)]