25396420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{641}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 61262208

約数和(自身を除く): 35865788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 566, 641, 1132, 1282, 1415, 1981, 2564, 2830, 3205, 3962, 4487, 5660, 6410, 7924, 8974, 9905, 12820, 17948, 19810, 22435, 39620, 44870, 89740, 181403, 362806, 725612, 907015, 1269821, 1814030, 2539642, 3628060, 5079284, 6349105, 12698210, 25396420]

約数ペア:

[(1, 25396420), (2, 12698210), (4, 6349105), (5, 5079284), (7, 3628060), (10, 2539642), (14, 1814030), (20, 1269821), (28, 907015), (35, 725612), (70, 362806), (140, 181403), (283, 89740), (566, 44870), (641, 39620), (1132, 22435), (1282, 19810), (1415, 17948), (1981, 12820), (2564, 9905), (2830, 8974), (3205, 7924), (3962, 6410), (4487, 5660)]