407776120

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{32159}}^1$

素因数の和:32487

約数の個数: 32

約数和(自身を含む): 920419200

約数和(自身を除く): 512643080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12680, 32159, 64318, 128636, 160795, 257272, 321590, 643180, 1286360, 10194403, 20388806, 40777612, 50972015, 81555224, 101944030, 203888060, 407776120]

約数ペア:

[(1, 407776120), (2, 203888060), (4, 101944030), (5, 81555224), (8, 50972015), (10, 40777612), (20, 20388806), (40, 10194403), (317, 1286360), (634, 643180), (1268, 321590), (1585, 257272), (2536, 160795), (3170, 128636), (6340, 64318), (12680, 32159)]