80636680

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14503}}^1$

素因数の和:14653

約数の個数: 32

約数和(自身を含む): 182750400

約数和(自身を除く): 102113720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 14503, 29006, 58012, 72515, 116024, 145030, 290060, 580120, 2015917, 4031834, 8063668, 10079585, 16127336, 20159170, 40318340, 80636680]

約数ペア:

[(1, 80636680), (2, 40318340), (4, 20159170), (5, 16127336), (8, 10079585), (10, 8063668), (20, 4031834), (40, 2015917), (139, 580120), (278, 290060), (556, 145030), (695, 116024), (1112, 72515), (1390, 58012), (2780, 29006), (5560, 14503)]