20123658885

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1\times {\mathrm{2861}}^1$

素因数の和:3834

約数の個数: 64

約数和(自身を含む): 35924373504

約数和(自身を除く): 15800714619

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 907, 1551, 2585, 2721, 2861, 4535, 7755, 8583, 9977, 13605, 14305, 29931, 31471, 42629, 42915, 49885, 94413, 127887, 134467, 149655, 157355, 213145, 403401, 468919, 472065, 639435, 672335, 1406757, 1479137, 2017005, 2344595, 2594927, 4437411, 7033785, 7395685, 7784781, 12974635, 22187055, 28544197, 38923905, 85632591, 121961569, 142720985, 365884707, 428162955, 609807845, 1341577259, 1829423535, 4024731777, 6707886295, 20123658885]

約数ペア:

[(1, 20123658885), (3, 6707886295), (5, 4024731777), (11, 1829423535), (15, 1341577259), (33, 609807845), (47, 428162955), (55, 365884707), (141, 142720985), (165, 121961569), (235, 85632591), (517, 38923905), (705, 28544197), (907, 22187055), (1551, 12974635), (2585, 7784781), (2721, 7395685), (2861, 7033785), (4535, 4437411), (7755, 2594927), (8583, 2344595), (9977, 2017005), (13605, 1479137), (14305, 1406757), (29931, 672335), (31471, 639435), (42629, 472065), (42915, 468919), (49885, 403401), (94413, 213145), (127887, 157355), (134467, 149655)]