38784280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22549}}^1$

素因数の和:22603

約数の個数: 32

約数和(自身を含む): 89298000

約数和(自身を除く): 50513720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 22549, 45098, 90196, 112745, 180392, 225490, 450980, 901960, 969607, 1939214, 3878428, 4848035, 7756856, 9696070, 19392140, 38784280]

約数ペア:

[(1, 38784280), (2, 19392140), (4, 9696070), (5, 7756856), (8, 4848035), (10, 3878428), (20, 1939214), (40, 969607), (43, 901960), (86, 450980), (172, 225490), (215, 180392), (344, 112745), (430, 90196), (860, 45098), (1720, 22549)]