661899762

素因数分解:

$2^1\times 3^4\times {\mathrm{79}}^1\times {\mathrm{51719}}^1$

素因数の和:51812

約数の個数: 40

約数和(自身を含む): 1501948800

約数和(自身を除く): 840049038

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 158, 162, 237, 474, 711, 1422, 2133, 4266, 6399, 12798, 51719, 103438, 155157, 310314, 465471, 930942, 1396413, 2792826, 4085801, 4189239, 8171602, 8378478, 12257403, 24514806, 36772209, 73544418, 110316627, 220633254, 330949881, 661899762]

約数ペア:

[(1, 661899762), (2, 330949881), (3, 220633254), (6, 110316627), (9, 73544418), (18, 36772209), (27, 24514806), (54, 12257403), (79, 8378478), (81, 8171602), (158, 4189239), (162, 4085801), (237, 2792826), (474, 1396413), (711, 930942), (1422, 465471), (2133, 310314), (4266, 155157), (6399, 103438), (12798, 51719)]