79978960

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 192844800

約数和(自身を除く): 112865840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 89, 94, 178, 188, 235, 239, 356, 376, 445, 470, 478, 712, 752, 890, 940, 956, 1195, 1424, 1780, 1880, 1912, 2390, 3560, 3760, 3824, 4183, 4780, 7120, 8366, 9560, 11233, 16732, 19120, 20915, 21271, 22466, 33464, 41830, 42542, 44932, 56165, 66928, 83660, 85084, 89864, 106355, 112330, 167320, 170168, 179728, 212710, 224660, 334640, 340336, 425420, 449320, 850840, 898640, 999737, 1701680, 1999474, 3998948, 4998685, 7997896, 9997370, 15995792, 19994740, 39989480, 79978960]

約数ペア:

[(1, 79978960), (2, 39989480), (4, 19994740), (5, 15995792), (8, 9997370), (10, 7997896), (16, 4998685), (20, 3998948), (40, 1999474), (47, 1701680), (80, 999737), (89, 898640), (94, 850840), (178, 449320), (188, 425420), (235, 340336), (239, 334640), (356, 224660), (376, 212710), (445, 179728), (470, 170168), (478, 167320), (712, 112330), (752, 106355), (890, 89864), (940, 85084), (956, 83660), (1195, 66928), (1424, 56165), (1780, 44932), (1880, 42542), (1912, 41830), (2390, 33464), (3560, 22466), (3760, 21271), (3824, 20915), (4183, 19120), (4780, 16732), (7120, 11233), (8366, 9560)]