20380736

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:259

約数の個数: 56

約数和(自身を含む): 42672000

約数和(自身を除く): 22291264

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 79, 116, 139, 158, 232, 278, 316, 464, 556, 632, 928, 1112, 1264, 1856, 2224, 2291, 2528, 4031, 4448, 4582, 5056, 8062, 8896, 9164, 10981, 16124, 18328, 21962, 32248, 36656, 43924, 64496, 73312, 87848, 128992, 146624, 175696, 257984, 318449, 351392, 636898, 702784, 1273796, 2547592, 5095184, 10190368, 20380736]

約数ペア:

[(1, 20380736), (2, 10190368), (4, 5095184), (8, 2547592), (16, 1273796), (29, 702784), (32, 636898), (58, 351392), (64, 318449), (79, 257984), (116, 175696), (139, 146624), (158, 128992), (232, 87848), (278, 73312), (316, 64496), (464, 43924), (556, 36656), (632, 32248), (928, 21962), (1112, 18328), (1264, 16124), (1856, 10981), (2224, 9164), (2291, 8896), (2528, 8062), (4031, 5056), (4448, 4582)]