20045860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 43819776

約数和(自身を除く): 23773916

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 103, 148, 185, 206, 263, 370, 412, 515, 526, 740, 1030, 1052, 1315, 2060, 2630, 3811, 5260, 7622, 9731, 15244, 19055, 19462, 27089, 38110, 38924, 48655, 54178, 76220, 97310, 108356, 135445, 194620, 270890, 541780, 1002293, 2004586, 4009172, 5011465, 10022930, 20045860]

約数ペア:

[(1, 20045860), (2, 10022930), (4, 5011465), (5, 4009172), (10, 2004586), (20, 1002293), (37, 541780), (74, 270890), (103, 194620), (148, 135445), (185, 108356), (206, 97310), (263, 76220), (370, 54178), (412, 48655), (515, 38924), (526, 38110), (740, 27089), (1030, 19462), (1052, 19055), (1315, 15244), (2060, 9731), (2630, 7622), (3811, 5260)]