8945390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 17917200

約数和(自身を除く): 8971810

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 89, 95, 115, 178, 190, 230, 437, 445, 529, 874, 890, 1058, 1691, 2047, 2185, 2645, 3382, 4094, 4370, 5290, 8455, 10051, 10235, 16910, 20102, 20470, 38893, 47081, 50255, 77786, 94162, 100510, 194465, 235405, 388930, 470810, 894539, 1789078, 4472695, 8945390]

約数ペア:

[(1, 8945390), (2, 4472695), (5, 1789078), (10, 894539), (19, 470810), (23, 388930), (38, 235405), (46, 194465), (89, 100510), (95, 94162), (115, 77786), (178, 50255), (190, 47081), (230, 38893), (437, 20470), (445, 20102), (529, 16910), (874, 10235), (890, 10051), (1058, 8455), (1691, 5290), (2047, 4370), (2185, 4094), (2645, 3382)]