2157280

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 5186160

約数和(自身を除く): 3028880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 139, 160, 194, 278, 388, 485, 556, 695, 776, 970, 1112, 1390, 1552, 1940, 2224, 2780, 3104, 3880, 4448, 5560, 7760, 11120, 13483, 15520, 22240, 26966, 53932, 67415, 107864, 134830, 215728, 269660, 431456, 539320, 1078640, 2157280]

約数ペア:

[(1, 2157280), (2, 1078640), (4, 539320), (5, 431456), (8, 269660), (10, 215728), (16, 134830), (20, 107864), (32, 67415), (40, 53932), (80, 26966), (97, 22240), (139, 15520), (160, 13483), (194, 11120), (278, 7760), (388, 5560), (485, 4448), (556, 3880), (695, 3104), (776, 2780), (970, 2224), (1112, 1940), (1390, 1552)]