1389040

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 3281040

約数和(自身を除く): 1892000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 179, 194, 358, 388, 485, 716, 776, 895, 970, 1432, 1552, 1790, 1940, 2864, 3580, 3880, 7160, 7760, 14320, 17363, 34726, 69452, 86815, 138904, 173630, 277808, 347260, 694520, 1389040]

約数ペア:

[(1, 1389040), (2, 694520), (4, 347260), (5, 277808), (8, 173630), (10, 138904), (16, 86815), (20, 69452), (40, 34726), (80, 17363), (97, 14320), (179, 7760), (194, 7160), (358, 3880), (388, 3580), (485, 2864), (716, 1940), (776, 1790), (895, 1552), (970, 1432)]