28125260

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 60775680

約数和(自身を除く): 32650420

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 139, 151, 268, 278, 302, 335, 556, 604, 670, 695, 755, 1340, 1390, 1510, 2780, 3020, 9313, 10117, 18626, 20234, 20989, 37252, 40468, 41978, 46565, 50585, 83956, 93130, 101170, 104945, 186260, 202340, 209890, 419780, 1406263, 2812526, 5625052, 7031315, 14062630, 28125260]

約数ペア:

[(1, 28125260), (2, 14062630), (4, 7031315), (5, 5625052), (10, 2812526), (20, 1406263), (67, 419780), (134, 209890), (139, 202340), (151, 186260), (268, 104945), (278, 101170), (302, 93130), (335, 83956), (556, 50585), (604, 46565), (670, 41978), (695, 40468), (755, 37252), (1340, 20989), (1390, 20234), (1510, 18626), (2780, 10117), (3020, 9313)]