20151890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{1097}}^1$

素因数の和:1282

約数の個数: 32

約数和(自身を含む): 39844224

約数和(自身を除く): 19692334

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 167, 334, 835, 1097, 1670, 1837, 2194, 3674, 5485, 9185, 10970, 12067, 18370, 24134, 60335, 120670, 183199, 366398, 915995, 1831990, 2015189, 4030378, 10075945, 20151890]

約数ペア:

[(1, 20151890), (2, 10075945), (5, 4030378), (10, 2015189), (11, 1831990), (22, 915995), (55, 366398), (110, 183199), (167, 120670), (334, 60335), (835, 24134), (1097, 18370), (1670, 12067), (1837, 10970), (2194, 9185), (3674, 5485)]