72784000

素因数分解:

$2^7\times 5^3\times {\mathrm{4549}}^1$

素因数の和:4578

約数の個数: 64

約数和(自身を含む): 180999000

約数和(自身を除く): 108215000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1600, 2000, 3200, 4000, 4549, 8000, 9098, 16000, 18196, 22745, 36392, 45490, 72784, 90980, 113725, 145568, 181960, 227450, 291136, 363920, 454900, 568625, 582272, 727840, 909800, 1137250, 1455680, 1819600, 2274500, 2911360, 3639200, 4549000, 7278400, 9098000, 14556800, 18196000, 36392000, 72784000]

約数ペア:

[(1, 72784000), (2, 36392000), (4, 18196000), (5, 14556800), (8, 9098000), (10, 7278400), (16, 4549000), (20, 3639200), (25, 2911360), (32, 2274500), (40, 1819600), (50, 1455680), (64, 1137250), (80, 909800), (100, 727840), (125, 582272), (128, 568625), (160, 454900), (200, 363920), (250, 291136), (320, 227450), (400, 181960), (500, 145568), (640, 113725), (800, 90980), (1000, 72784), (1600, 45490), (2000, 36392), (3200, 22745), (4000, 18196), (4549, 16000), (8000, 9098)]