40491440

素因数分解:

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

素因数の和:171

約数の個数: 120

約数和(自身を含む): 106868160

約数和(自身を除く): 66376720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 89, 94, 110, 121, 176, 178, 188, 220, 235, 242, 356, 376, 440, 445, 470, 484, 517, 605, 712, 752, 880, 890, 940, 968, 979, 1034, 1210, 1424, 1780, 1880, 1936, 1958, 2068, 2420, 2585, 3560, 3760, 3916, 4136, 4183, 4840, 4895, 5170, 5687, 7120, 7832, 8272, 8366, 9680, 9790, 10340, 10769, 11374, 15664, 16732, 19580, 20680, 20915, 21538, 22748, 28435, 33464, 39160, 41360, 41830, 43076, 45496, 46013, 53845, 56870, 66928, 78320, 83660, 86152, 90992, 92026, 107690, 113740, 167320, 172304, 184052, 215380, 227480, 230065, 334640, 368104, 430760, 454960, 460130, 506143, 736208, 861520, 920260, 1012286, 1840520, 2024572, 2530715, 3681040, 4049144, 5061430, 8098288, 10122860, 20245720, 40491440]

約数ペア:

[(1, 40491440), (2, 20245720), (4, 10122860), (5, 8098288), (8, 5061430), (10, 4049144), (11, 3681040), (16, 2530715), (20, 2024572), (22, 1840520), (40, 1012286), (44, 920260), (47, 861520), (55, 736208), (80, 506143), (88, 460130), (89, 454960), (94, 430760), (110, 368104), (121, 334640), (176, 230065), (178, 227480), (188, 215380), (220, 184052), (235, 172304), (242, 167320), (356, 113740), (376, 107690), (440, 92026), (445, 90992), (470, 86152), (484, 83660), (517, 78320), (605, 66928), (712, 56870), (752, 53845), (880, 46013), (890, 45496), (940, 43076), (968, 41830), (979, 41360), (1034, 39160), (1210, 33464), (1424, 28435), (1780, 22748), (1880, 21538), (1936, 20915), (1958, 20680), (2068, 19580), (2420, 16732), (2585, 15664), (3560, 11374), (3760, 10769), (3916, 10340), (4136, 9790), (4183, 9680), (4840, 8366), (4895, 8272), (5170, 7832), (5687, 7120)]