20042648

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{613}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 38829360

約数和(自身を除く): 18786712

約数列:

[1, 2, 4, 8, 61, 67, 122, 134, 244, 268, 488, 536, 613, 1226, 2452, 4087, 4904, 8174, 16348, 32696, 37393, 41071, 74786, 82142, 149572, 164284, 299144, 328568, 2505331, 5010662, 10021324, 20042648]

約数ペア:

[(1, 20042648), (2, 10021324), (4, 5010662), (8, 2505331), (61, 328568), (67, 299144), (122, 164284), (134, 149572), (244, 82142), (268, 74786), (488, 41071), (536, 37393), (613, 32696), (1226, 16348), (2452, 8174), (4087, 4904)]