4991996

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 9114000

約数和(自身を除く): 4122004

約数列:

[1, 2, 4, 41, 61, 82, 122, 164, 244, 499, 998, 1996, 2501, 5002, 10004, 20459, 30439, 40918, 60878, 81836, 121756, 1247999, 2495998, 4991996]

約数ペア:

[(1, 4991996), (2, 2495998), (4, 1247999), (41, 121756), (61, 81836), (82, 60878), (122, 40918), (164, 30439), (244, 20459), (499, 10004), (998, 5002), (1996, 2501)]