316829440

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1949}}^1$

素因数の和:2097

約数の個数: 72

約数和(自身を含む): 765273600

約数和(自身を除く): 448444160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1270, 1280, 1949, 2032, 2540, 3898, 4064, 5080, 7796, 8128, 9745, 10160, 15592, 16256, 19490, 20320, 31184, 32512, 38980, 40640, 62368, 77960, 81280, 124736, 155920, 162560, 247523, 249472, 311840, 495046, 498944, 623680, 990092, 1237615, 1247360, 1980184, 2475230, 2494720, 3960368, 4950460, 7920736, 9900920, 15841472, 19801840, 31682944, 39603680, 63365888, 79207360, 158414720, 316829440]

約数ペア:

[(1, 316829440), (2, 158414720), (4, 79207360), (5, 63365888), (8, 39603680), (10, 31682944), (16, 19801840), (20, 15841472), (32, 9900920), (40, 7920736), (64, 4950460), (80, 3960368), (127, 2494720), (128, 2475230), (160, 1980184), (254, 1247360), (256, 1237615), (320, 990092), (508, 623680), (635, 498944), (640, 495046), (1016, 311840), (1270, 249472), (1280, 247523), (1949, 162560), (2032, 155920), (2540, 124736), (3898, 81280), (4064, 77960), (5080, 62368), (7796, 40640), (8128, 38980), (9745, 32512), (10160, 31184), (15592, 20320), (16256, 19490)]