20123999988

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{40902439}}^1$

素因数の和:40902487

約数の個数: 24

約数和(自身を含む): 48101269440

約数和(自身を除く): 27977269452

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 40902439, 81804878, 122707317, 163609756, 245414634, 490829268, 1676999999, 3353999998, 5030999997, 6707999996, 10061999994, 20123999988]

約数ペア:

[(1, 20123999988), (2, 10061999994), (3, 6707999996), (4, 5030999997), (6, 3353999998), (12, 1676999999), (41, 490829268), (82, 245414634), (123, 163609756), (164, 122707317), (246, 81804878), (492, 40902439)]