25784020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16319}}^1$

素因数の和:16407

約数の個数: 24

約数和(自身を含む): 54835200

約数和(自身を除く): 29051180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 16319, 32638, 65276, 81595, 163190, 326380, 1289201, 2578402, 5156804, 6446005, 12892010, 25784020]

約数ペア:

[(1, 25784020), (2, 12892010), (4, 6446005), (5, 5156804), (10, 2578402), (20, 1289201), (79, 326380), (158, 163190), (316, 81595), (395, 65276), (790, 32638), (1580, 16319)]