38980000

素因数分解:

$2^5\times 5^4\times {\mathrm{1949}}^1$

素因数の和:1979

約数の個数: 60

約数和(自身を含む): 95945850

約数和(自身を除く): 56965850

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1949, 2000, 2500, 3898, 4000, 5000, 7796, 9745, 10000, 15592, 19490, 20000, 31184, 38980, 48725, 62368, 77960, 97450, 155920, 194900, 243625, 311840, 389800, 487250, 779600, 974500, 1218125, 1559200, 1949000, 2436250, 3898000, 4872500, 7796000, 9745000, 19490000, 38980000]

約数ペア:

[(1, 38980000), (2, 19490000), (4, 9745000), (5, 7796000), (8, 4872500), (10, 3898000), (16, 2436250), (20, 1949000), (25, 1559200), (32, 1218125), (40, 974500), (50, 779600), (80, 487250), (100, 389800), (125, 311840), (160, 243625), (200, 194900), (250, 155920), (400, 97450), (500, 77960), (625, 62368), (800, 48725), (1000, 38980), (1250, 31184), (1949, 20000), (2000, 19490), (2500, 15592), (3898, 10000), (4000, 9745), (5000, 7796)]