87112880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17851}}^1$

素因数の和:17925

約数の個数: 40

約数和(自身を含む): 205869264

約数和(自身を除く): 118756384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 17851, 35702, 71404, 89255, 142808, 178510, 285616, 357020, 714040, 1088911, 1428080, 2177822, 4355644, 5444555, 8711288, 10889110, 17422576, 21778220, 43556440, 87112880]

約数ペア:

[(1, 87112880), (2, 43556440), (4, 21778220), (5, 17422576), (8, 10889110), (10, 8711288), (16, 5444555), (20, 4355644), (40, 2177822), (61, 1428080), (80, 1088911), (122, 714040), (244, 357020), (305, 285616), (488, 178510), (610, 142808), (976, 89255), (1220, 71404), (2440, 35702), (4880, 17851)]