198018400

素因数分解:

$2^5\times 5^2\times {\mathrm{127}}^1\times {\mathrm{1949}}^1$

素因数の和:2096

約数の個数: 72

約数和(自身を含む): 487468800

約数和(自身を除く): 289450400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 127, 160, 200, 254, 400, 508, 635, 800, 1016, 1270, 1949, 2032, 2540, 3175, 3898, 4064, 5080, 6350, 7796, 9745, 10160, 12700, 15592, 19490, 20320, 25400, 31184, 38980, 48725, 50800, 62368, 77960, 97450, 101600, 155920, 194900, 247523, 311840, 389800, 495046, 779600, 990092, 1237615, 1559200, 1980184, 2475230, 3960368, 4950460, 6188075, 7920736, 9900920, 12376150, 19801840, 24752300, 39603680, 49504600, 99009200, 198018400]

約数ペア:

[(1, 198018400), (2, 99009200), (4, 49504600), (5, 39603680), (8, 24752300), (10, 19801840), (16, 12376150), (20, 9900920), (25, 7920736), (32, 6188075), (40, 4950460), (50, 3960368), (80, 2475230), (100, 1980184), (127, 1559200), (160, 1237615), (200, 990092), (254, 779600), (400, 495046), (508, 389800), (635, 311840), (800, 247523), (1016, 194900), (1270, 155920), (1949, 101600), (2032, 97450), (2540, 77960), (3175, 62368), (3898, 50800), (4064, 48725), (5080, 38980), (6350, 31184), (7796, 25400), (9745, 20320), (10160, 19490), (12700, 15592)]