16901240

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{811}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 38147760

約数和(自身を除く): 21246520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 811, 1042, 1622, 2084, 2605, 3244, 4055, 4168, 5210, 6488, 8110, 10420, 16220, 20840, 32440, 422531, 845062, 1690124, 2112655, 3380248, 4225310, 8450620, 16901240]

約数ペア:

[(1, 16901240), (2, 8450620), (4, 4225310), (5, 3380248), (8, 2112655), (10, 1690124), (20, 845062), (40, 422531), (521, 32440), (811, 20840), (1042, 16220), (1622, 10420), (2084, 8110), (2605, 6488), (3244, 5210), (4055, 4168)]