20089821560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{90511}}^1$

素因数の和:90732

約数の個数: 64

約数和(自身を含む): 46921420800

約数和(自身を除く): 26831599240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 179, 248, 310, 358, 620, 716, 895, 1240, 1432, 1790, 3580, 5549, 7160, 11098, 22196, 27745, 44392, 55490, 90511, 110980, 181022, 221960, 362044, 452555, 724088, 905110, 1810220, 2805841, 3620440, 5611682, 11223364, 14029205, 16201469, 22446728, 28058410, 32402938, 56116820, 64805876, 81007345, 112233640, 129611752, 162014690, 324029380, 502245539, 648058760, 1004491078, 2008982156, 2511227695, 4017964312, 5022455390, 10044910780, 20089821560]

約数ペア:

[(1, 20089821560), (2, 10044910780), (4, 5022455390), (5, 4017964312), (8, 2511227695), (10, 2008982156), (20, 1004491078), (31, 648058760), (40, 502245539), (62, 324029380), (124, 162014690), (155, 129611752), (179, 112233640), (248, 81007345), (310, 64805876), (358, 56116820), (620, 32402938), (716, 28058410), (895, 22446728), (1240, 16201469), (1432, 14029205), (1790, 11223364), (3580, 5611682), (5549, 3620440), (7160, 2805841), (11098, 1810220), (22196, 905110), (27745, 724088), (44392, 452555), (55490, 362044), (90511, 221960), (110980, 181022)]