1840520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 4665600

約数和(自身を除く): 2825080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 89, 94, 110, 178, 188, 220, 235, 356, 376, 440, 445, 470, 517, 712, 890, 940, 979, 1034, 1780, 1880, 1958, 2068, 2585, 3560, 3916, 4136, 4183, 4895, 5170, 7832, 8366, 9790, 10340, 16732, 19580, 20680, 20915, 33464, 39160, 41830, 46013, 83660, 92026, 167320, 184052, 230065, 368104, 460130, 920260, 1840520]

約数ペア:

[(1, 1840520), (2, 920260), (4, 460130), (5, 368104), (8, 230065), (10, 184052), (11, 167320), (20, 92026), (22, 83660), (40, 46013), (44, 41830), (47, 39160), (55, 33464), (88, 20915), (89, 20680), (94, 19580), (110, 16732), (178, 10340), (188, 9790), (220, 8366), (235, 7832), (356, 5170), (376, 4895), (440, 4183), (445, 4136), (470, 3916), (517, 3560), (712, 2585), (890, 2068), (940, 1958), (979, 1880), (1034, 1780)]