18939720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157831}}^1$

素因数の和:157845

約数の個数: 32

約数和(自身を含む): 56819520

約数和(自身を除く): 37879800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157831, 315662, 473493, 631324, 789155, 946986, 1262648, 1578310, 1893972, 2367465, 3156620, 3787944, 4734930, 6313240, 9469860, 18939720]

約数ペア:

[(1, 18939720), (2, 9469860), (3, 6313240), (4, 4734930), (5, 3787944), (6, 3156620), (8, 2367465), (10, 1893972), (12, 1578310), (15, 1262648), (20, 946986), (24, 789155), (30, 631324), (40, 473493), (60, 315662), (120, 157831)]