663560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 1526040

約数和(自身を除く): 862480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 313, 424, 530, 626, 1060, 1252, 1565, 2120, 2504, 3130, 6260, 12520, 16589, 33178, 66356, 82945, 132712, 165890, 331780, 663560]

約数ペア:

[(1, 663560), (2, 331780), (4, 165890), (5, 132712), (8, 82945), (10, 66356), (20, 33178), (40, 16589), (53, 12520), (106, 6260), (212, 3130), (265, 2504), (313, 2120), (424, 1565), (530, 1252), (626, 1060)]