19425680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5647}}^1$

素因数の和:5703

約数の個数: 40

約数和(自身を含む): 46223232

約数和(自身を除く): 26797552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5647, 11294, 22588, 28235, 45176, 56470, 90352, 112940, 225880, 242821, 451760, 485642, 971284, 1214105, 1942568, 2428210, 3885136, 4856420, 9712840, 19425680]

約数ペア:

[(1, 19425680), (2, 9712840), (4, 4856420), (5, 3885136), (8, 2428210), (10, 1942568), (16, 1214105), (20, 971284), (40, 485642), (43, 451760), (80, 242821), (86, 225880), (172, 112940), (215, 90352), (344, 56470), (430, 45176), (688, 28235), (860, 22588), (1720, 11294), (3440, 5647)]