51397660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{135257}}^1$

素因数の和:135285

約数の個数: 24

約数和(自身を含む): 113616720

約数和(自身を除く): 62219060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 135257, 270514, 541028, 676285, 1352570, 2569883, 2705140, 5139766, 10279532, 12849415, 25698830, 51397660]

約数ペア:

[(1, 51397660), (2, 25698830), (4, 12849415), (5, 10279532), (10, 5139766), (19, 2705140), (20, 2569883), (38, 1352570), (76, 676285), (95, 541028), (190, 270514), (380, 135257)]