31184000

素因数分解:

$2^7\times 5^3\times {\mathrm{1949}}^1$

素因数の和:1978

約数の個数: 64

約数和(自身を含む): 77571000

約数和(自身を除く): 46387000

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, 1949, 2000, 3200, 3898, 4000, 7796, 8000, 9745, 15592, 16000, 19490, 31184, 38980, 48725, 62368, 77960, 97450, 124736, 155920, 194900, 243625, 249472, 311840, 389800, 487250, 623680, 779600, 974500, 1247360, 1559200, 1949000, 3118400, 3898000, 6236800, 7796000, 15592000, 31184000]

約数ペア:

[(1, 31184000), (2, 15592000), (4, 7796000), (5, 6236800), (8, 3898000), (10, 3118400), (16, 1949000), (20, 1559200), (25, 1247360), (32, 974500), (40, 779600), (50, 623680), (64, 487250), (80, 389800), (100, 311840), (125, 249472), (128, 243625), (160, 194900), (200, 155920), (250, 124736), (320, 97450), (400, 77960), (500, 62368), (640, 48725), (800, 38980), (1000, 31184), (1600, 19490), (1949, 16000), (2000, 15592), (3200, 9745), (3898, 8000), (4000, 7796)]