18711440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1933}}^1$

素因数の和:1968

約数の個数: 60

約数和(自身を含む): 47843292

約数和(自身を除く): 29131852

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1933, 1936, 2420, 3866, 4840, 7732, 9665, 9680, 15464, 19330, 21263, 30928, 38660, 42526, 77320, 85052, 106315, 154640, 170104, 212630, 233893, 340208, 425260, 467786, 850520, 935572, 1169465, 1701040, 1871144, 2338930, 3742288, 4677860, 9355720, 18711440]

約数ペア:

[(1, 18711440), (2, 9355720), (4, 4677860), (5, 3742288), (8, 2338930), (10, 1871144), (11, 1701040), (16, 1169465), (20, 935572), (22, 850520), (40, 467786), (44, 425260), (55, 340208), (80, 233893), (88, 212630), (110, 170104), (121, 154640), (176, 106315), (220, 85052), (242, 77320), (440, 42526), (484, 38660), (605, 30928), (880, 21263), (968, 19330), (1210, 15464), (1933, 9680), (1936, 9665), (2420, 7732), (3866, 4840)]