20032520

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3823}}^1$

素因数の和:3965

約数の個数: 32

約数和(自身を含む): 45429120

約数和(自身を除く): 25396600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3823, 5240, 7646, 15292, 19115, 30584, 38230, 76460, 152920, 500813, 1001626, 2003252, 2504065, 4006504, 5008130, 10016260, 20032520]

約数ペア:

[(1, 20032520), (2, 10016260), (4, 5008130), (5, 4006504), (8, 2504065), (10, 2003252), (20, 1001626), (40, 500813), (131, 152920), (262, 76460), (524, 38230), (655, 30584), (1048, 19115), (1310, 15292), (2620, 7646), (3823, 5240)]