20152520

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3209}}^1$

素因数の和:3377

約数の個数: 32

約数和(自身を含む): 45646200

約数和(自身を除く): 25493680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 3209, 6280, 6418, 12836, 16045, 25672, 32090, 64180, 128360, 503813, 1007626, 2015252, 2519065, 4030504, 5038130, 10076260, 20152520]

約数ペア:

[(1, 20152520), (2, 10076260), (4, 5038130), (5, 4030504), (8, 2519065), (10, 2015252), (20, 1007626), (40, 503813), (157, 128360), (314, 64180), (628, 32090), (785, 25672), (1256, 16045), (1570, 12836), (3140, 6418), (3209, 6280)]