18196000

素因数分解:

$2^5\times 5^3\times {\mathrm{4549}}^1$

素因数の和:4574

約数の個数: 48

約数和(自身を含む): 44717400

約数和(自身を除く): 26521400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 4549, 9098, 18196, 22745, 36392, 45490, 72784, 90980, 113725, 145568, 181960, 227450, 363920, 454900, 568625, 727840, 909800, 1137250, 1819600, 2274500, 3639200, 4549000, 9098000, 18196000]

約数ペア:

[(1, 18196000), (2, 9098000), (4, 4549000), (5, 3639200), (8, 2274500), (10, 1819600), (16, 1137250), (20, 909800), (25, 727840), (32, 568625), (40, 454900), (50, 363920), (80, 227450), (100, 181960), (125, 145568), (160, 113725), (200, 90980), (250, 72784), (400, 45490), (500, 36392), (800, 22745), (1000, 18196), (2000, 9098), (4000, 4549)]