20702560

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2753}}^1$

素因数の和:2815

約数の個数: 48

約数和(自身を含む): 49968576

約数和(自身を除く): 29266016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2753, 3760, 5506, 7520, 11012, 13765, 22024, 27530, 44048, 55060, 88096, 110120, 129391, 220240, 258782, 440480, 517564, 646955, 1035128, 1293910, 2070256, 2587820, 4140512, 5175640, 10351280, 20702560]

約数ペア:

[(1, 20702560), (2, 10351280), (4, 5175640), (5, 4140512), (8, 2587820), (10, 2070256), (16, 1293910), (20, 1035128), (32, 646955), (40, 517564), (47, 440480), (80, 258782), (94, 220240), (160, 129391), (188, 110120), (235, 88096), (376, 55060), (470, 44048), (752, 27530), (940, 22024), (1504, 13765), (1880, 11012), (2753, 7520), (3760, 5506)]