821000728

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 1612548000

約数和(自身を除く): 791547272

約数列:

[1, 2, 4, 8, 41, 82, 107, 149, 157, 164, 214, 298, 314, 328, 428, 596, 628, 856, 1192, 1256, 4387, 6109, 6437, 8774, 12218, 12874, 15943, 16799, 17548, 23393, 24436, 25748, 31886, 33598, 35096, 46786, 48872, 51496, 63772, 67196, 93572, 127544, 134392, 187144, 653663, 688759, 959113, 1307326, 1377518, 1918226, 2503051, 2614652, 2755036, 3836452, 5006102, 5229304, 5510072, 7672904, 10012204, 20024408, 102625091, 205250182, 410500364, 821000728]

約数ペア:

[(1, 821000728), (2, 410500364), (4, 205250182), (8, 102625091), (41, 20024408), (82, 10012204), (107, 7672904), (149, 5510072), (157, 5229304), (164, 5006102), (214, 3836452), (298, 2755036), (314, 2614652), (328, 2503051), (428, 1918226), (596, 1377518), (628, 1307326), (856, 959113), (1192, 688759), (1256, 653663), (4387, 187144), (6109, 134392), (6437, 127544), (8774, 93572), (12218, 67196), (12874, 63772), (15943, 51496), (16799, 48872), (17548, 46786), (23393, 35096), (24436, 33598), (25748, 31886)]