71368840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{16369}}^1$

素因数の和:16489

約数の個数: 32

約数和(自身を含む): 162063000

約数和(自身を除く): 90694160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 16369, 32738, 65476, 81845, 130952, 163690, 327380, 654760, 1784221, 3568442, 7136884, 8921105, 14273768, 17842210, 35684420, 71368840]

約数ペア:

[(1, 71368840), (2, 35684420), (4, 17842210), (5, 14273768), (8, 8921105), (10, 7136884), (20, 3568442), (40, 1784221), (109, 654760), (218, 327380), (436, 163690), (545, 130952), (872, 81845), (1090, 65476), (2180, 32738), (4360, 16369)]