20386048249

素因数分解:

$7^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:328

約数の個数: 80

約数和(自身を含む): 26017704720

約数和(自身を除く): 5631656471

約数列:

[1, 7, 29, 37, 41, 49, 193, 203, 259, 287, 343, 1073, 1189, 1351, 1421, 1517, 1813, 2009, 2401, 5597, 7141, 7511, 7913, 8323, 9457, 9947, 10619, 12691, 14063, 39179, 43993, 49987, 52577, 55391, 58261, 66199, 69629, 74333, 88837, 98441, 207089, 229477, 274253, 292781, 307951, 349909, 368039, 387737, 407827, 463393, 520331, 1449623, 1606339, 1919771, 2049467, 2155657, 2449363, 2576273, 2714159, 2854789, 3642317, 8490649, 10147361, 11244373, 13438397, 14346269, 15089599, 17145541, 18999113, 59434543, 71031527, 78710611, 100423883, 105627193, 416041801, 497220689, 550974277, 702967181, 2912292607, 20386048249]

約数ペア:

[(1, 20386048249), (7, 2912292607), (29, 702967181), (37, 550974277), (41, 497220689), (49, 416041801), (193, 105627193), (203, 100423883), (259, 78710611), (287, 71031527), (343, 59434543), (1073, 18999113), (1189, 17145541), (1351, 15089599), (1421, 14346269), (1517, 13438397), (1813, 11244373), (2009, 10147361), (2401, 8490649), (5597, 3642317), (7141, 2854789), (7511, 2714159), (7913, 2576273), (8323, 2449363), (9457, 2155657), (9947, 2049467), (10619, 1919771), (12691, 1606339), (14063, 1449623), (39179, 520331), (43993, 463393), (49987, 407827), (52577, 387737), (55391, 368039), (58261, 349909), (66199, 307951), (69629, 292781), (74333, 274253), (88837, 229477), (98441, 207089)]