80663600

素因数分解:

$2^4\times 5^2\times {\mathrm{421}}^1\times {\mathrm{479}}^1$

素因数の和:918

約数の個数: 60

約数和(自身を含む): 194660160

約数和(自身を除く): 113996560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 421, 479, 842, 958, 1684, 1916, 2105, 2395, 3368, 3832, 4210, 4790, 6736, 7664, 8420, 9580, 10525, 11975, 16840, 19160, 21050, 23950, 33680, 38320, 42100, 47900, 84200, 95800, 168400, 191600, 201659, 403318, 806636, 1008295, 1613272, 2016590, 3226544, 4033180, 5041475, 8066360, 10082950, 16132720, 20165900, 40331800, 80663600]

約数ペア:

[(1, 80663600), (2, 40331800), (4, 20165900), (5, 16132720), (8, 10082950), (10, 8066360), (16, 5041475), (20, 4033180), (25, 3226544), (40, 2016590), (50, 1613272), (80, 1008295), (100, 806636), (200, 403318), (400, 201659), (421, 191600), (479, 168400), (842, 95800), (958, 84200), (1684, 47900), (1916, 42100), (2105, 38320), (2395, 33680), (3368, 23950), (3832, 21050), (4210, 19160), (4790, 16840), (6736, 11975), (7664, 10525), (8420, 9580)]