20162592040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{289859}}^1$

素因数の和:289954

約数の個数: 64

約数和(自身を含む): 47583417600

約数和(自身を除く): 27420825560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 235, 296, 370, 376, 470, 740, 940, 1480, 1739, 1880, 3478, 6956, 8695, 13912, 17390, 34780, 69560, 289859, 579718, 1159436, 1449295, 2318872, 2898590, 5797180, 10724783, 11594360, 13623373, 21449566, 27246746, 42899132, 53623915, 54493492, 68116865, 85798264, 107247830, 108986984, 136233730, 214495660, 272467460, 428991320, 504064801, 544934920, 1008129602, 2016259204, 2520324005, 4032518408, 5040648010, 10081296020, 20162592040]

約数ペア:

[(1, 20162592040), (2, 10081296020), (4, 5040648010), (5, 4032518408), (8, 2520324005), (10, 2016259204), (20, 1008129602), (37, 544934920), (40, 504064801), (47, 428991320), (74, 272467460), (94, 214495660), (148, 136233730), (185, 108986984), (188, 107247830), (235, 85798264), (296, 68116865), (370, 54493492), (376, 53623915), (470, 42899132), (740, 27246746), (940, 21449566), (1480, 13623373), (1739, 11594360), (1880, 10724783), (3478, 5797180), (6956, 2898590), (8695, 2318872), (13912, 1449295), (17390, 1159436), (34780, 579718), (69560, 289859)]