20813568

素因数分解:

$2^8\times 3^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 56831376

約数和(自身を除く): 36017808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 128, 164, 192, 246, 256, 328, 384, 492, 656, 661, 768, 984, 1312, 1322, 1968, 1983, 2624, 2644, 3936, 3966, 5248, 5288, 7872, 7932, 10496, 10576, 15744, 15864, 21152, 27101, 31488, 31728, 42304, 54202, 63456, 81303, 84608, 108404, 126912, 162606, 169216, 216808, 253824, 325212, 433616, 507648, 650424, 867232, 1300848, 1734464, 2601696, 3468928, 5203392, 6937856, 10406784, 20813568]

約数ペア:

[(1, 20813568), (2, 10406784), (3, 6937856), (4, 5203392), (6, 3468928), (8, 2601696), (12, 1734464), (16, 1300848), (24, 867232), (32, 650424), (41, 507648), (48, 433616), (64, 325212), (82, 253824), (96, 216808), (123, 169216), (128, 162606), (164, 126912), (192, 108404), (246, 84608), (256, 81303), (328, 63456), (384, 54202), (492, 42304), (656, 31728), (661, 31488), (768, 27101), (984, 21152), (1312, 15864), (1322, 15744), (1968, 10576), (1983, 10496), (2624, 7932), (2644, 7872), (3936, 5288), (3966, 5248)]