4020252080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{829}}^1\times {\mathrm{4663}}^1$

素因数の和:5518

約数の個数: 80

約数和(自身を含む): 10080396480

約数和(自身を除く): 6060144400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 829, 1040, 1658, 3316, 4145, 4663, 6632, 8290, 9326, 10777, 13264, 16580, 18652, 21554, 23315, 33160, 37304, 43108, 46630, 53885, 60619, 66320, 74608, 86216, 93260, 107770, 121238, 172432, 186520, 215540, 242476, 303095, 373040, 431080, 484952, 606190, 862160, 969904, 1212380, 2424760, 3865627, 4849520, 7731254, 15462508, 19328135, 30925016, 38656270, 50253151, 61850032, 77312540, 100506302, 154625080, 201012604, 251265755, 309250160, 402025208, 502531510, 804050416, 1005063020, 2010126040, 4020252080]

約数ペア:

[(1, 4020252080), (2, 2010126040), (4, 1005063020), (5, 804050416), (8, 502531510), (10, 402025208), (13, 309250160), (16, 251265755), (20, 201012604), (26, 154625080), (40, 100506302), (52, 77312540), (65, 61850032), (80, 50253151), (104, 38656270), (130, 30925016), (208, 19328135), (260, 15462508), (520, 7731254), (829, 4849520), (1040, 3865627), (1658, 2424760), (3316, 1212380), (4145, 969904), (4663, 862160), (6632, 606190), (8290, 484952), (9326, 431080), (10777, 373040), (13264, 303095), (16580, 242476), (18652, 215540), (21554, 186520), (23315, 172432), (33160, 121238), (37304, 107770), (43108, 93260), (46630, 86216), (53885, 74608), (60619, 66320)]