4491990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 12165120

約数和(自身を除く): 7673130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 127, 131, 135, 254, 262, 270, 381, 393, 635, 655, 762, 786, 1143, 1179, 1270, 1310, 1905, 1965, 2286, 2358, 3429, 3537, 3810, 3930, 5715, 5895, 6858, 7074, 11430, 11790, 16637, 17145, 17685, 33274, 34290, 35370, 49911, 83185, 99822, 149733, 166370, 249555, 299466, 449199, 499110, 748665, 898398, 1497330, 2245995, 4491990]

約数ペア:

[(1, 4491990), (2, 2245995), (3, 1497330), (5, 898398), (6, 748665), (9, 499110), (10, 449199), (15, 299466), (18, 249555), (27, 166370), (30, 149733), (45, 99822), (54, 83185), (90, 49911), (127, 35370), (131, 34290), (135, 33274), (254, 17685), (262, 17145), (270, 16637), (381, 11790), (393, 11430), (635, 7074), (655, 6858), (762, 5895), (786, 5715), (1143, 3930), (1179, 3810), (1270, 3537), (1310, 3429), (1905, 2358), (1965, 2286)]