172867460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{443}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 369230400

約数和(自身を除く): 196362940

約数列:

[1, 2, 4, 5, 10, 20, 109, 179, 218, 358, 436, 443, 545, 716, 886, 895, 1090, 1772, 1790, 2180, 2215, 3580, 4430, 8860, 19511, 39022, 48287, 78044, 79297, 96574, 97555, 158594, 193148, 195110, 241435, 317188, 390220, 396485, 482870, 792970, 965740, 1585940, 8643373, 17286746, 34573492, 43216865, 86433730, 172867460]

約数ペア:

[(1, 172867460), (2, 86433730), (4, 43216865), (5, 34573492), (10, 17286746), (20, 8643373), (109, 1585940), (179, 965740), (218, 792970), (358, 482870), (436, 396485), (443, 390220), (545, 317188), (716, 241435), (886, 195110), (895, 193148), (1090, 158594), (1772, 97555), (1790, 96574), (2180, 79297), (2215, 78044), (3580, 48287), (4430, 39022), (8860, 19511)]