18664240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{33329}}^1$

素因数の和:33349

約数の個数: 40

約数和(自身を含む): 49595040

約数和(自身を除く): 30930800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 33329, 66658, 133316, 166645, 233303, 266632, 333290, 466606, 533264, 666580, 933212, 1166515, 1333160, 1866424, 2333030, 2666320, 3732848, 4666060, 9332120, 18664240]

約数ペア:

[(1, 18664240), (2, 9332120), (4, 4666060), (5, 3732848), (7, 2666320), (8, 2333030), (10, 1866424), (14, 1333160), (16, 1166515), (20, 933212), (28, 666580), (35, 533264), (40, 466606), (56, 333290), (70, 266632), (80, 233303), (112, 166645), (140, 133316), (280, 66658), (560, 33329)]