66312520

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3257}}^1$

素因数の和:3777

約数の個数: 32

約数和(自身を含む): 149542200

約数和(自身を除く): 83229680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 3257, 4072, 5090, 6514, 10180, 13028, 16285, 20360, 26056, 32570, 65140, 130280, 1657813, 3315626, 6631252, 8289065, 13262504, 16578130, 33156260, 66312520]

約数ペア:

[(1, 66312520), (2, 33156260), (4, 16578130), (5, 13262504), (8, 8289065), (10, 6631252), (20, 3315626), (40, 1657813), (509, 130280), (1018, 65140), (2036, 32570), (2545, 26056), (3257, 20360), (4072, 16285), (5090, 13028), (6514, 10180)]