205486520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2677}}^1$

素因数の和:2808

約数の個数: 64

約数和(自身を含む): 491680800

約数和(自身を除く): 286194280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 380, 404, 505, 760, 808, 1010, 1919, 2020, 2677, 3838, 4040, 5354, 7676, 9595, 10708, 13385, 15352, 19190, 21416, 26770, 38380, 50863, 53540, 76760, 101726, 107080, 203452, 254315, 270377, 406904, 508630, 540754, 1017260, 1081508, 1351885, 2034520, 2163016, 2703770, 5137163, 5407540, 10274326, 10815080, 20548652, 25685815, 41097304, 51371630, 102743260, 205486520]

約数ペア:

[(1, 205486520), (2, 102743260), (4, 51371630), (5, 41097304), (8, 25685815), (10, 20548652), (19, 10815080), (20, 10274326), (38, 5407540), (40, 5137163), (76, 2703770), (95, 2163016), (101, 2034520), (152, 1351885), (190, 1081508), (202, 1017260), (380, 540754), (404, 508630), (505, 406904), (760, 270377), (808, 254315), (1010, 203452), (1919, 107080), (2020, 101726), (2677, 76760), (3838, 53540), (4040, 50863), (5354, 38380), (7676, 26770), (9595, 21416), (10708, 19190), (13385, 15352)]