20827690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1223}}^1$

素因数の和:1374

約数の個数: 32

約数和(自身を含む): 40715136

約数和(自身を除く): 19887446

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1223, 1310, 1703, 2446, 3406, 6115, 8515, 12230, 15899, 17030, 31798, 79495, 158990, 160213, 320426, 801065, 1602130, 2082769, 4165538, 10413845, 20827690]

約数ペア:

[(1, 20827690), (2, 10413845), (5, 4165538), (10, 2082769), (13, 1602130), (26, 801065), (65, 320426), (130, 160213), (131, 158990), (262, 79495), (655, 31798), (1223, 17030), (1310, 15899), (1703, 12230), (2446, 8515), (3406, 6115)]