820287720575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{6841}}^1$

素因数の和:7089

約数の個数: 96

約数和(自身を含む): 1128857748480

約数和(自身を除く): 308570027905

約数列:

[1, 5, 19, 25, 41, 47, 95, 131, 205, 235, 475, 655, 779, 893, 1025, 1175, 1927, 2489, 3275, 3895, 4465, 5371, 6157, 6841, 9635, 12445, 19475, 22325, 26855, 30785, 34205, 36613, 48175, 62225, 102049, 116983, 129979, 134275, 153925, 171025, 183065, 252437, 280481, 321527, 510245, 584915, 649895, 896171, 915325, 1262185, 1402405, 1607635, 2551225, 2924575, 3249475, 4480855, 4796303, 5329139, 6109013, 6310925, 7012025, 8038175, 13182607, 17027249, 22404275, 23981515, 26645695, 30545065, 36743011, 42120037, 65913035, 85136245, 119907575, 133228475, 152725325, 183715055, 210600185, 250469533, 329565175, 425681225, 698117209, 800280703, 918575275, 1053000925, 1252347665, 1726921517, 3490586045, 4001403515, 6261738325, 8634607585, 17452930225, 20007017575, 32811508823, 43173037925, 164057544115, 820287720575]

約数ペア:

[(1, 820287720575), (5, 164057544115), (19, 43173037925), (25, 32811508823), (41, 20007017575), (47, 17452930225), (95, 8634607585), (131, 6261738325), (205, 4001403515), (235, 3490586045), (475, 1726921517), (655, 1252347665), (779, 1053000925), (893, 918575275), (1025, 800280703), (1175, 698117209), (1927, 425681225), (2489, 329565175), (3275, 250469533), (3895, 210600185), (4465, 183715055), (5371, 152725325), (6157, 133228475), (6841, 119907575), (9635, 85136245), (12445, 65913035), (19475, 42120037), (22325, 36743011), (26855, 30545065), (30785, 26645695), (34205, 23981515), (36613, 22404275), (48175, 17027249), (62225, 13182607), (102049, 8038175), (116983, 7012025), (129979, 6310925), (134275, 6109013), (153925, 5329139), (171025, 4796303), (183065, 4480855), (252437, 3249475), (280481, 2924575), (321527, 2551225), (510245, 1607635), (584915, 1402405), (649895, 1262185), (896171, 915325)]