20478856755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{29123}}^1$

素因数の和:29356

約数の個数: 64

約数和(自身を含む): 38672944128

約数和(自身を除く): 18194087373

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 181, 185, 259, 543, 555, 777, 905, 1267, 1295, 2715, 3801, 3885, 6335, 6697, 19005, 20091, 29123, 33485, 46879, 87369, 100455, 140637, 145615, 203861, 234395, 436845, 611583, 703185, 1019305, 1077551, 3057915, 3232653, 5271263, 5387755, 7542857, 15813789, 16163265, 22628571, 26356315, 36898841, 37714285, 79068945, 110696523, 113142855, 184494205, 195036731, 553482615, 585110193, 975183655, 1365257117, 2925550965, 4095771351, 6826285585, 20478856755]

約数ペア:

[(1, 20478856755), (3, 6826285585), (5, 4095771351), (7, 2925550965), (15, 1365257117), (21, 975183655), (35, 585110193), (37, 553482615), (105, 195036731), (111, 184494205), (181, 113142855), (185, 110696523), (259, 79068945), (543, 37714285), (555, 36898841), (777, 26356315), (905, 22628571), (1267, 16163265), (1295, 15813789), (2715, 7542857), (3801, 5387755), (3885, 5271263), (6335, 3232653), (6697, 3057915), (19005, 1077551), (20091, 1019305), (29123, 703185), (33485, 611583), (46879, 436845), (87369, 234395), (100455, 203861), (140637, 145615)]