49789990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{121439}}^1$

素因数の和:121487

約数の個数: 16

約数和(自身を含む): 91808640

約数和(自身を除く): 42018650

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 121439, 242878, 607195, 1214390, 4978999, 9957998, 24894995, 49789990]

約数ペア:

[(1, 49789990), (2, 24894995), (5, 9957998), (10, 4978999), (41, 1214390), (82, 607195), (205, 242878), (410, 121439)]