39897904

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{40879}}^1$

素因数の和:40948

約数の個数: 20

約数和(自身を含む): 78571360

約数和(自身を除く): 38673456

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 40879, 81758, 163516, 327032, 654064, 2493619, 4987238, 9974476, 19948952, 39897904]

約数ペア:

[(1, 39897904), (2, 19948952), (4, 9974476), (8, 4987238), (16, 2493619), (61, 654064), (122, 327032), (244, 163516), (488, 81758), (976, 40879)]