878445140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{23227}}^1$

素因数の和:23328

約数の個数: 48

約数和(自身を含む): 1935542784

約数和(自身を除く): 1057097644

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 7564, 9455, 18910, 23227, 37820, 46454, 92908, 116135, 232270, 464540, 720037, 1416847, 1440074, 2833694, 2880148, 3600185, 5667388, 7084235, 7200370, 14168470, 14400740, 28336940, 43922257, 87844514, 175689028, 219611285, 439222570, 878445140]

約数ペア:

[(1, 878445140), (2, 439222570), (4, 219611285), (5, 175689028), (10, 87844514), (20, 43922257), (31, 28336940), (61, 14400740), (62, 14168470), (122, 7200370), (124, 7084235), (155, 5667388), (244, 3600185), (305, 2880148), (310, 2833694), (610, 1440074), (620, 1416847), (1220, 720037), (1891, 464540), (3782, 232270), (7564, 116135), (9455, 92908), (18910, 46454), (23227, 37820)]