2175880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 5904000

約数和(自身を除く): 3728120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 409, 532, 665, 760, 818, 1064, 1330, 1636, 2045, 2660, 2863, 3272, 4090, 5320, 5726, 7771, 8180, 11452, 14315, 15542, 16360, 22904, 28630, 31084, 38855, 54397, 57260, 62168, 77710, 108794, 114520, 155420, 217588, 271985, 310840, 435176, 543970, 1087940, 2175880]

約数ペア:

[(1, 2175880), (2, 1087940), (4, 543970), (5, 435176), (7, 310840), (8, 271985), (10, 217588), (14, 155420), (19, 114520), (20, 108794), (28, 77710), (35, 62168), (38, 57260), (40, 54397), (56, 38855), (70, 31084), (76, 28630), (95, 22904), (133, 16360), (140, 15542), (152, 14315), (190, 11452), (266, 8180), (280, 7771), (380, 5726), (409, 5320), (532, 4090), (665, 3272), (760, 2863), (818, 2660), (1064, 2045), (1330, 1636)]