80975920

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2917}}^1$

素因数の和:3277

約数の個数: 40

約数和(自身を含む): 188876304

約数和(自身を除く): 107900384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 694, 1388, 1735, 2776, 2917, 3470, 5552, 5834, 6940, 11668, 13880, 14585, 23336, 27760, 29170, 46672, 58340, 116680, 233360, 1012199, 2024398, 4048796, 5060995, 8097592, 10121990, 16195184, 20243980, 40487960, 80975920]

約数ペア:

[(1, 80975920), (2, 40487960), (4, 20243980), (5, 16195184), (8, 10121990), (10, 8097592), (16, 5060995), (20, 4048796), (40, 2024398), (80, 1012199), (347, 233360), (694, 116680), (1388, 58340), (1735, 46672), (2776, 29170), (2917, 27760), (3470, 23336), (5552, 14585), (5834, 13880), (6940, 11668)]