154440880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{787}}^1$

素因数の和:1034

約数の個数: 80

約数和(自身を含む): 393974784

約数和(自身を除く): 239533904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 223, 440, 446, 787, 880, 892, 1115, 1574, 1784, 2230, 2453, 3148, 3568, 3935, 4460, 4906, 6296, 7870, 8657, 8920, 9812, 12265, 12592, 15740, 17314, 17840, 19624, 24530, 31480, 34628, 39248, 43285, 49060, 62960, 69256, 86570, 98120, 138512, 173140, 175501, 196240, 346280, 351002, 692560, 702004, 877505, 1404008, 1755010, 1930511, 2808016, 3510020, 3861022, 7020040, 7722044, 9652555, 14040080, 15444088, 19305110, 30888176, 38610220, 77220440, 154440880]

約数ペア:

[(1, 154440880), (2, 77220440), (4, 38610220), (5, 30888176), (8, 19305110), (10, 15444088), (11, 14040080), (16, 9652555), (20, 7722044), (22, 7020040), (40, 3861022), (44, 3510020), (55, 2808016), (80, 1930511), (88, 1755010), (110, 1404008), (176, 877505), (220, 702004), (223, 692560), (440, 351002), (446, 346280), (787, 196240), (880, 175501), (892, 173140), (1115, 138512), (1574, 98120), (1784, 86570), (2230, 69256), (2453, 62960), (3148, 49060), (3568, 43285), (3935, 39248), (4460, 34628), (4906, 31480), (6296, 24530), (7870, 19624), (8657, 17840), (8920, 17314), (9812, 15740), (12265, 12592)]