19425040

素因数分解:

$2^4\times 5^1\times {\mathrm{242813}}^1$

素因数の和:242826

約数の個数: 20

約数和(自身を含む): 45163404

約数和(自身を除く): 25738364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242813, 485626, 971252, 1214065, 1942504, 2428130, 3885008, 4856260, 9712520, 19425040]

約数ペア:

[(1, 19425040), (2, 9712520), (4, 4856260), (5, 3885008), (8, 2428130), (10, 1942504), (16, 1214065), (20, 971252), (40, 485626), (80, 242813)]