31371720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{261431}}^1$

素因数の和:261445

約数の個数: 32

約数和(自身を含む): 94115520

約数和(自身を除く): 62743800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 261431, 522862, 784293, 1045724, 1307155, 1568586, 2091448, 2614310, 3137172, 3921465, 5228620, 6274344, 7842930, 10457240, 15685860, 31371720]

約数ペア:

[(1, 31371720), (2, 15685860), (3, 10457240), (4, 7842930), (5, 6274344), (6, 5228620), (8, 3921465), (10, 3137172), (12, 2614310), (15, 2091448), (20, 1568586), (24, 1307155), (30, 1045724), (40, 784293), (60, 522862), (120, 261431)]