18260440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{883}}^1$

素因数の和:952

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 27566120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 883, 940, 1034, 1766, 1880, 2068, 2585, 3532, 4136, 4415, 5170, 7064, 8830, 9713, 10340, 17660, 19426, 20680, 35320, 38852, 41501, 48565, 77704, 83002, 97130, 166004, 194260, 207505, 332008, 388520, 415010, 456511, 830020, 913022, 1660040, 1826044, 2282555, 3652088, 4565110, 9130220, 18260440]

約数ペア:

[(1, 18260440), (2, 9130220), (4, 4565110), (5, 3652088), (8, 2282555), (10, 1826044), (11, 1660040), (20, 913022), (22, 830020), (40, 456511), (44, 415010), (47, 388520), (55, 332008), (88, 207505), (94, 194260), (110, 166004), (188, 97130), (220, 83002), (235, 77704), (376, 48565), (440, 41501), (470, 38852), (517, 35320), (883, 20680), (940, 19426), (1034, 17660), (1766, 10340), (1880, 9713), (2068, 8830), (2585, 7064), (3532, 5170), (4136, 4415)]