20189636855

素因数分解:

$5^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:1079

約数の個数: 32

約数和(自身を含む): 24636358656

約数和(自身を除く): 4446721801

約数列:

[1, 5, 181, 191, 271, 431, 905, 955, 1355, 2155, 34571, 49051, 51761, 78011, 82321, 116801, 172855, 245255, 258805, 390055, 411605, 584005, 9368741, 14900101, 21140981, 22308991, 46843705, 74500505, 105704905, 111544955, 4037927371, 20189636855]

約数ペア:

[(1, 20189636855), (5, 4037927371), (181, 111544955), (191, 105704905), (271, 74500505), (431, 46843705), (905, 22308991), (955, 21140981), (1355, 14900101), (2155, 9368741), (34571, 584005), (49051, 411605), (51761, 390055), (78011, 258805), (82321, 245255), (116801, 172855)]