320041640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101279}}^1$

素因数の和:101369

約数の個数: 32

約数和(自身を含む): 729216000

約数和(自身を除く): 409174360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 101279, 202558, 405116, 506395, 810232, 1012790, 2025580, 4051160, 8001041, 16002082, 32004164, 40005205, 64008328, 80010410, 160020820, 320041640]

約数ペア:

[(1, 320041640), (2, 160020820), (4, 80010410), (5, 64008328), (8, 40005205), (10, 32004164), (20, 16002082), (40, 8001041), (79, 4051160), (158, 2025580), (316, 1012790), (395, 810232), (632, 506395), (790, 405116), (1580, 202558), (3160, 101279)]