640564344

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{1270961}}^1$

素因数の和:1270980

約数の個数: 48

約数和(自身を含む): 1982700720

約数和(自身を除く): 1342136376

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 1270961, 2541922, 3812883, 5083844, 7625766, 8896727, 10167688, 11438649, 15251532, 17793454, 22877298, 26690181, 30503064, 35586908, 45754596, 53380362, 71173816, 80070543, 91509192, 106760724, 160141086, 213521448, 320282172, 640564344]

約数ペア:

[(1, 640564344), (2, 320282172), (3, 213521448), (4, 160141086), (6, 106760724), (7, 91509192), (8, 80070543), (9, 71173816), (12, 53380362), (14, 45754596), (18, 35586908), (21, 30503064), (24, 26690181), (28, 22877298), (36, 17793454), (42, 15251532), (56, 11438649), (63, 10167688), (72, 8896727), (84, 7625766), (126, 5083844), (168, 3812883), (252, 2541922), (504, 1270961)]