64514440

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{10273}}^1$

素因数の和:10441

約数の個数: 32

約数和(自身を含む): 146096280

約数和(自身を除く): 81581840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 10273, 20546, 41092, 51365, 82184, 102730, 205460, 410920, 1612861, 3225722, 6451444, 8064305, 12902888, 16128610, 32257220, 64514440]

約数ペア:

[(1, 64514440), (2, 32257220), (4, 16128610), (5, 12902888), (8, 8064305), (10, 6451444), (20, 3225722), (40, 1612861), (157, 410920), (314, 205460), (628, 102730), (785, 82184), (1256, 51365), (1570, 41092), (3140, 20546), (6280, 10273)]