20548970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5099}}^1$

素因数の和:5150

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 20577430

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 5099, 10198, 25495, 50990, 66287, 132574, 158069, 316138, 331435, 662870, 790345, 1580690, 2054897, 4109794, 10274485, 20548970]

約数ペア:

[(1, 20548970), (2, 10274485), (5, 4109794), (10, 2054897), (13, 1580690), (26, 790345), (31, 662870), (62, 331435), (65, 316138), (130, 158069), (155, 132574), (310, 66287), (403, 50990), (806, 25495), (2015, 10198), (4030, 5099)]