809310920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{167213}}^1$

素因数の和:167246

約数の個数: 48

約数和(自身を含む): 2001551580

約数和(自身を除く): 1192240660

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 167213, 334426, 668852, 836065, 1337704, 1672130, 1839343, 3344260, 3678686, 6688520, 7357372, 9196715, 14714744, 18393430, 20232773, 36786860, 40465546, 73573720, 80931092, 101163865, 161862184, 202327730, 404655460, 809310920]

約数ペア:

[(1, 809310920), (2, 404655460), (4, 202327730), (5, 161862184), (8, 101163865), (10, 80931092), (11, 73573720), (20, 40465546), (22, 36786860), (40, 20232773), (44, 18393430), (55, 14714744), (88, 9196715), (110, 7357372), (121, 6688520), (220, 3678686), (242, 3344260), (440, 1839343), (484, 1672130), (605, 1337704), (968, 836065), (1210, 668852), (2420, 334426), (4840, 167213)]