80441720

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{2797}}^1$

素因数の和:3527

約数の個数: 32

約数和(自身を含む): 181310400

約数和(自身を除く): 100868680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2797, 2876, 3595, 5594, 5752, 7190, 11188, 13985, 14380, 22376, 27970, 28760, 55940, 111880, 2011043, 4022086, 8044172, 10055215, 16088344, 20110430, 40220860, 80441720]

約数ペア:

[(1, 80441720), (2, 40220860), (4, 20110430), (5, 16088344), (8, 10055215), (10, 8044172), (20, 4022086), (40, 2011043), (719, 111880), (1438, 55940), (2797, 28760), (2876, 27970), (3595, 22376), (5594, 14380), (5752, 13985), (7190, 11188)]