81511400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13147}}^1$

素因数の和:13194

約数の個数: 48

約数和(自身を含む): 195642240

約数和(自身を除く): 114130840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 13147, 26294, 52588, 65735, 105176, 131470, 262940, 328675, 407557, 525880, 657350, 815114, 1314700, 1630228, 2037785, 2629400, 3260456, 4075570, 8151140, 10188925, 16302280, 20377850, 40755700, 81511400]

約数ペア:

[(1, 81511400), (2, 40755700), (4, 20377850), (5, 16302280), (8, 10188925), (10, 8151140), (20, 4075570), (25, 3260456), (31, 2629400), (40, 2037785), (50, 1630228), (62, 1314700), (100, 815114), (124, 657350), (155, 525880), (200, 407557), (248, 328675), (310, 262940), (620, 131470), (775, 105176), (1240, 65735), (1550, 52588), (3100, 26294), (6200, 13147)]