20176981300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{82591}}^1$

素因数の和:82961

約数の個数: 72

約数和(自身を含む): 50182899200

約数和(自身を除く): 30005917900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 349, 350, 698, 700, 1396, 1745, 2443, 3490, 4886, 6980, 8725, 9772, 12215, 17450, 24430, 34900, 48860, 61075, 82591, 122150, 165182, 244300, 330364, 412955, 578137, 825910, 1156274, 1651820, 2064775, 2312548, 2890685, 4129550, 5781370, 8259100, 11562740, 14453425, 28824259, 28906850, 57648518, 57813700, 115297036, 144121295, 201769813, 288242590, 403539626, 576485180, 720606475, 807079252, 1008849065, 1441212950, 2017698130, 2882425900, 4035396260, 5044245325, 10088490650, 20176981300]

約数ペア:

[(1, 20176981300), (2, 10088490650), (4, 5044245325), (5, 4035396260), (7, 2882425900), (10, 2017698130), (14, 1441212950), (20, 1008849065), (25, 807079252), (28, 720606475), (35, 576485180), (50, 403539626), (70, 288242590), (100, 201769813), (140, 144121295), (175, 115297036), (349, 57813700), (350, 57648518), (698, 28906850), (700, 28824259), (1396, 14453425), (1745, 11562740), (2443, 8259100), (3490, 5781370), (4886, 4129550), (6980, 2890685), (8725, 2312548), (9772, 2064775), (12215, 1651820), (17450, 1156274), (24430, 825910), (34900, 578137), (48860, 412955), (61075, 330364), (82591, 244300), (122150, 165182)]