81712720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35221}}^1$

素因数の和:35263

約数の個数: 40

約数和(自身を含む): 196538760

約数和(自身を除く): 114826040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 35221, 70442, 140884, 176105, 281768, 352210, 563536, 704420, 1021409, 1408840, 2042818, 2817680, 4085636, 5107045, 8171272, 10214090, 16342544, 20428180, 40856360, 81712720]

約数ペア:

[(1, 81712720), (2, 40856360), (4, 20428180), (5, 16342544), (8, 10214090), (10, 8171272), (16, 5107045), (20, 4085636), (29, 2817680), (40, 2042818), (58, 1408840), (80, 1021409), (116, 704420), (145, 563536), (232, 352210), (290, 281768), (464, 176105), (580, 140884), (1160, 70442), (2320, 35221)]