9780495550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{541}}^1$

素因数の和:771

約数の個数: 144

約数和(自身を含む): 21789908928

約数和(自身を除く): 12009413378

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 49, 50, 70, 94, 98, 157, 175, 235, 245, 314, 329, 350, 470, 490, 541, 658, 785, 1082, 1099, 1175, 1225, 1570, 1645, 2198, 2303, 2350, 2450, 2705, 3290, 3787, 3925, 4606, 5410, 5495, 7379, 7574, 7693, 7850, 8225, 10990, 11515, 13525, 14758, 15386, 16450, 18935, 23030, 25427, 26509, 27050, 27475, 36895, 37870, 38465, 50854, 51653, 53018, 54950, 57575, 73790, 76930, 84937, 94675, 103306, 115150, 127135, 132545, 169874, 177989, 184475, 189350, 192325, 254270, 258265, 265090, 355978, 361571, 368950, 384650, 424685, 516530, 594559, 635675, 662725, 723142, 849370, 889945, 1189118, 1245923, 1271350, 1291325, 1325450, 1779890, 1807855, 2123425, 2491846, 2582650, 2972795, 3615710, 3992039, 4161913, 4246850, 4449725, 5945590, 6229615, 7984078, 8323826, 8899450, 9039275, 12459230, 14863975, 18078550, 19960195, 20809565, 27944273, 29727950, 31148075, 39920390, 41619130, 55888546, 62296150, 99800975, 104047825, 139721365, 195609911, 199601950, 208095650, 279442730, 391219822, 698606825, 978049555, 1397213650, 1956099110, 4890247775, 9780495550]

約数ペア:

[(1, 9780495550), (2, 4890247775), (5, 1956099110), (7, 1397213650), (10, 978049555), (14, 698606825), (25, 391219822), (35, 279442730), (47, 208095650), (49, 199601950), (50, 195609911), (70, 139721365), (94, 104047825), (98, 99800975), (157, 62296150), (175, 55888546), (235, 41619130), (245, 39920390), (314, 31148075), (329, 29727950), (350, 27944273), (470, 20809565), (490, 19960195), (541, 18078550), (658, 14863975), (785, 12459230), (1082, 9039275), (1099, 8899450), (1175, 8323826), (1225, 7984078), (1570, 6229615), (1645, 5945590), (2198, 4449725), (2303, 4246850), (2350, 4161913), (2450, 3992039), (2705, 3615710), (3290, 2972795), (3787, 2582650), (3925, 2491846), (4606, 2123425), (5410, 1807855), (5495, 1779890), (7379, 1325450), (7574, 1291325), (7693, 1271350), (7850, 1245923), (8225, 1189118), (10990, 889945), (11515, 849370), (13525, 723142), (14758, 662725), (15386, 635675), (16450, 594559), (18935, 516530), (23030, 424685), (25427, 384650), (26509, 368950), (27050, 361571), (27475, 355978), (36895, 265090), (37870, 258265), (38465, 254270), (50854, 192325), (51653, 189350), (53018, 184475), (54950, 177989), (57575, 169874), (73790, 132545), (76930, 127135), (84937, 115150), (94675, 103306)]