278294240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{248477}}^1$

素因数の和:248499

約数の個数: 48

約数和(自身を含む): 751397472

約数和(自身を除く): 473103232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 248477, 496954, 993908, 1242385, 1739339, 1987816, 2484770, 3478678, 3975632, 4969540, 6957356, 7951264, 8696695, 9939080, 13914712, 17393390, 19878160, 27829424, 34786780, 39756320, 55658848, 69573560, 139147120, 278294240]

約数ペア:

[(1, 278294240), (2, 139147120), (4, 69573560), (5, 55658848), (7, 39756320), (8, 34786780), (10, 27829424), (14, 19878160), (16, 17393390), (20, 13914712), (28, 9939080), (32, 8696695), (35, 7951264), (40, 6957356), (56, 4969540), (70, 3975632), (80, 3478678), (112, 2484770), (140, 1987816), (160, 1739339), (224, 1242385), (280, 993908), (560, 496954), (1120, 248477)]