19302680

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{739}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 43556400

約数和(自身を除く): 24253720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 739, 1306, 1478, 2612, 2956, 3265, 3695, 5224, 5912, 6530, 7390, 13060, 14780, 26120, 29560, 482567, 965134, 1930268, 2412835, 3860536, 4825670, 9651340, 19302680]

約数ペア:

[(1, 19302680), (2, 9651340), (4, 4825670), (5, 3860536), (8, 2412835), (10, 1930268), (20, 965134), (40, 482567), (653, 29560), (739, 26120), (1306, 14780), (1478, 13060), (2612, 7390), (2956, 6530), (3265, 5912), (3695, 5224)]