20479440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85331}}^1$

素因数の和:85347

約数の個数: 40

約数和(自身を含む): 63487008

約数和(自身を除く): 43007568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85331, 170662, 255993, 341324, 426655, 511986, 682648, 853310, 1023972, 1279965, 1365296, 1706620, 2047944, 2559930, 3413240, 4095888, 5119860, 6826480, 10239720, 20479440]

約数ペア:

[(1, 20479440), (2, 10239720), (3, 6826480), (4, 5119860), (5, 4095888), (6, 3413240), (8, 2559930), (10, 2047944), (12, 1706620), (15, 1365296), (16, 1279965), (20, 1023972), (24, 853310), (30, 682648), (40, 511986), (48, 426655), (60, 341324), (80, 255993), (120, 170662), (240, 85331)]