19959400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4339}}^1$

素因数の和:4378

約数の個数: 48

約数和(自身を含む): 48434400

約数和(自身を除く): 28475000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4339, 4600, 8678, 17356, 21695, 34712, 43390, 86780, 99797, 108475, 173560, 199594, 216950, 399188, 433900, 498985, 798376, 867800, 997970, 1995940, 2494925, 3991880, 4989850, 9979700, 19959400]

約数ペア:

[(1, 19959400), (2, 9979700), (4, 4989850), (5, 3991880), (8, 2494925), (10, 1995940), (20, 997970), (23, 867800), (25, 798376), (40, 498985), (46, 433900), (50, 399188), (92, 216950), (100, 199594), (115, 173560), (184, 108475), (200, 99797), (230, 86780), (460, 43390), (575, 34712), (920, 21695), (1150, 17356), (2300, 8678), (4339, 4600)]