638555238

素因数分解:

$2^1\times 3^4\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{757}}^1$

素因数の和:939

約数の個数: 80

約数和(自身を含む): 1479227904

約数和(自身を除く): 840672666

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 81, 82, 123, 127, 162, 246, 254, 369, 381, 738, 757, 762, 1107, 1143, 1514, 2214, 2271, 2286, 3321, 3429, 4542, 5207, 6642, 6813, 6858, 10287, 10414, 13626, 15621, 20439, 20574, 31037, 31242, 40878, 46863, 61317, 62074, 93111, 93726, 96139, 122634, 140589, 186222, 192278, 279333, 281178, 288417, 421767, 558666, 576834, 837999, 843534, 865251, 1675998, 1730502, 2513997, 2595753, 3941699, 5027994, 5191506, 7787259, 7883398, 11825097, 15574518, 23650194, 35475291, 70950582, 106425873, 212851746, 319277619, 638555238]

約数ペア:

[(1, 638555238), (2, 319277619), (3, 212851746), (6, 106425873), (9, 70950582), (18, 35475291), (27, 23650194), (41, 15574518), (54, 11825097), (81, 7883398), (82, 7787259), (123, 5191506), (127, 5027994), (162, 3941699), (246, 2595753), (254, 2513997), (369, 1730502), (381, 1675998), (738, 865251), (757, 843534), (762, 837999), (1107, 576834), (1143, 558666), (1514, 421767), (2214, 288417), (2271, 281178), (2286, 279333), (3321, 192278), (3429, 186222), (4542, 140589), (5207, 122634), (6642, 96139), (6813, 93726), (6858, 93111), (10287, 62074), (10414, 61317), (13626, 46863), (15621, 40878), (20439, 31242), (20574, 31037)]