8145160

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1297}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 18457560

約数和(自身を除く): 10312400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1297, 1570, 2594, 3140, 5188, 6280, 6485, 10376, 12970, 25940, 51880, 203629, 407258, 814516, 1018145, 1629032, 2036290, 4072580, 8145160]

約数ペア:

[(1, 8145160), (2, 4072580), (4, 2036290), (5, 1629032), (8, 1018145), (10, 814516), (20, 407258), (40, 203629), (157, 51880), (314, 25940), (628, 12970), (785, 10376), (1256, 6485), (1297, 6280), (1570, 5188), (2594, 3140)]