18405200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 49818240

約数和(自身を除く): 31413040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 47, 50, 55, 80, 88, 89, 94, 100, 110, 176, 178, 188, 200, 220, 235, 275, 356, 376, 400, 440, 445, 470, 517, 550, 712, 752, 880, 890, 940, 979, 1034, 1100, 1175, 1424, 1780, 1880, 1958, 2068, 2200, 2225, 2350, 2585, 3560, 3760, 3916, 4136, 4183, 4400, 4450, 4700, 4895, 5170, 7120, 7832, 8272, 8366, 8900, 9400, 9790, 10340, 12925, 15664, 16732, 17800, 18800, 19580, 20680, 20915, 24475, 25850, 33464, 35600, 39160, 41360, 41830, 46013, 48950, 51700, 66928, 78320, 83660, 92026, 97900, 103400, 104575, 167320, 184052, 195800, 206800, 209150, 230065, 334640, 368104, 391600, 418300, 460130, 736208, 836600, 920260, 1150325, 1673200, 1840520, 2300650, 3681040, 4601300, 9202600, 18405200]

約数ペア:

[(1, 18405200), (2, 9202600), (4, 4601300), (5, 3681040), (8, 2300650), (10, 1840520), (11, 1673200), (16, 1150325), (20, 920260), (22, 836600), (25, 736208), (40, 460130), (44, 418300), (47, 391600), (50, 368104), (55, 334640), (80, 230065), (88, 209150), (89, 206800), (94, 195800), (100, 184052), (110, 167320), (176, 104575), (178, 103400), (188, 97900), (200, 92026), (220, 83660), (235, 78320), (275, 66928), (356, 51700), (376, 48950), (400, 46013), (440, 41830), (445, 41360), (470, 39160), (517, 35600), (550, 33464), (712, 25850), (752, 24475), (880, 20915), (890, 20680), (940, 19580), (979, 18800), (1034, 17800), (1100, 16732), (1175, 15664), (1424, 12925), (1780, 10340), (1880, 9790), (1958, 9400), (2068, 8900), (2200, 8366), (2225, 8272), (2350, 7832), (2585, 7120), (3560, 5170), (3760, 4895), (3916, 4700), (4136, 4450), (4183, 4400)]