20017558735

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1\times {\mathrm{18089}}^1$

素因数の和:18435

約数の個数: 32

約数和(自身を含む): 26070439680

約数和(自身を除く): 6052880945

約数列:

[1, 5, 17, 47, 85, 235, 277, 799, 1385, 3995, 4709, 13019, 18089, 23545, 65095, 90445, 221323, 307513, 850183, 1106615, 1537565, 4250915, 5010653, 14453111, 25053265, 72265555, 85181101, 235500691, 425905505, 1177503455, 4003511747, 20017558735]

約数ペア:

[(1, 20017558735), (5, 4003511747), (17, 1177503455), (47, 425905505), (85, 235500691), (235, 85181101), (277, 72265555), (799, 25053265), (1385, 14453111), (3995, 5010653), (4709, 4250915), (13019, 1537565), (18089, 1106615), (23545, 850183), (65095, 307513), (90445, 221323)]