2578232020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1289}}^1$

素因数の和:1482

約数の個数: 144

約数和(自身を含む): 6831231120

約数和(自身を除く): 4252999100

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 157, 182, 196, 245, 260, 314, 364, 455, 490, 628, 637, 785, 910, 980, 1099, 1274, 1289, 1570, 1820, 2041, 2198, 2548, 2578, 3140, 3185, 4082, 4396, 5156, 5495, 6370, 6445, 7693, 8164, 9023, 10205, 10990, 12740, 12890, 14287, 15386, 16757, 18046, 20410, 21980, 25780, 28574, 30772, 33514, 36092, 38465, 40820, 45115, 57148, 63161, 67028, 71435, 76930, 83785, 90230, 100009, 117299, 126322, 142870, 153860, 167570, 180460, 200018, 202373, 234598, 252644, 285740, 315805, 335140, 400036, 404746, 469196, 500045, 586495, 631610, 809492, 821093, 1000090, 1011865, 1172990, 1263220, 1416611, 1642186, 2000180, 2023730, 2345980, 2630849, 2833222, 3284372, 4047460, 4105465, 5261698, 5666444, 7083055, 8210930, 9916277, 10523396, 13154245, 14166110, 16421860, 18415943, 19832554, 26308490, 28332220, 36831886, 39665108, 49581385, 52616980, 73663772, 92079715, 99162770, 128911601, 184159430, 198325540, 257823202, 368318860, 515646404, 644558005, 1289116010, 2578232020]

約数ペア:

[(1, 2578232020), (2, 1289116010), (4, 644558005), (5, 515646404), (7, 368318860), (10, 257823202), (13, 198325540), (14, 184159430), (20, 128911601), (26, 99162770), (28, 92079715), (35, 73663772), (49, 52616980), (52, 49581385), (65, 39665108), (70, 36831886), (91, 28332220), (98, 26308490), (130, 19832554), (140, 18415943), (157, 16421860), (182, 14166110), (196, 13154245), (245, 10523396), (260, 9916277), (314, 8210930), (364, 7083055), (455, 5666444), (490, 5261698), (628, 4105465), (637, 4047460), (785, 3284372), (910, 2833222), (980, 2630849), (1099, 2345980), (1274, 2023730), (1289, 2000180), (1570, 1642186), (1820, 1416611), (2041, 1263220), (2198, 1172990), (2548, 1011865), (2578, 1000090), (3140, 821093), (3185, 809492), (4082, 631610), (4396, 586495), (5156, 500045), (5495, 469196), (6370, 404746), (6445, 400036), (7693, 335140), (8164, 315805), (9023, 285740), (10205, 252644), (10990, 234598), (12740, 202373), (12890, 200018), (14287, 180460), (15386, 167570), (16757, 153860), (18046, 142870), (20410, 126322), (21980, 117299), (25780, 100009), (28574, 90230), (30772, 83785), (33514, 76930), (36092, 71435), (38465, 67028), (40820, 63161), (45115, 57148)]