20725264

素因数分解:

$2^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{877}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 46161728

約数和(自身を除く): 25436464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 211, 422, 844, 877, 1477, 1688, 1754, 2954, 3376, 3508, 5908, 6139, 7016, 11816, 12278, 14032, 23632, 24556, 49112, 98224, 185047, 370094, 740188, 1295329, 1480376, 2590658, 2960752, 5181316, 10362632, 20725264]

約数ペア:

[(1, 20725264), (2, 10362632), (4, 5181316), (7, 2960752), (8, 2590658), (14, 1480376), (16, 1295329), (28, 740188), (56, 370094), (112, 185047), (211, 98224), (422, 49112), (844, 24556), (877, 23632), (1477, 14032), (1688, 12278), (1754, 11816), (2954, 7016), (3376, 6139), (3508, 5908)]