1789400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 4352400

約数和(自身を除く): 2563000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 389, 460, 575, 778, 920, 1150, 1556, 1945, 2300, 3112, 3890, 4600, 7780, 8947, 9725, 15560, 17894, 19450, 35788, 38900, 44735, 71576, 77800, 89470, 178940, 223675, 357880, 447350, 894700, 1789400]

約数ペア:

[(1, 1789400), (2, 894700), (4, 447350), (5, 357880), (8, 223675), (10, 178940), (20, 89470), (23, 77800), (25, 71576), (40, 44735), (46, 38900), (50, 35788), (92, 19450), (100, 17894), (115, 15560), (184, 9725), (200, 8947), (230, 7780), (389, 4600), (460, 3890), (575, 3112), (778, 2300), (920, 1945), (1150, 1556)]