20468640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42643}}^1$

素因数の和:42661

約数の個数: 48

約数和(自身を含む): 64477728

約数和(自身を除く): 44009088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42643, 85286, 127929, 170572, 213215, 255858, 341144, 426430, 511716, 639645, 682288, 852860, 1023432, 1279290, 1364576, 1705720, 2046864, 2558580, 3411440, 4093728, 5117160, 6822880, 10234320, 20468640]

約数ペア:

[(1, 20468640), (2, 10234320), (3, 6822880), (4, 5117160), (5, 4093728), (6, 3411440), (8, 2558580), (10, 2046864), (12, 1705720), (15, 1364576), (16, 1279290), (20, 1023432), (24, 852860), (30, 682288), (32, 639645), (40, 511716), (48, 426430), (60, 341144), (80, 255858), (96, 213215), (120, 170572), (160, 127929), (240, 85286), (480, 42643)]