201717760

素因数分解:

$2^{11}\times 5^1\times {\mathrm{19699}}^1$

素因数の和:19726

約数の個数: 48

約数和(自身を含む): 484029000

約数和(自身を除く): 282311240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 19699, 39398, 78796, 98495, 157592, 196990, 315184, 393980, 630368, 787960, 1260736, 1575920, 2521472, 3151840, 5042944, 6303680, 10085888, 12607360, 20171776, 25214720, 40343552, 50429440, 100858880, 201717760]

約数ペア:

[(1, 201717760), (2, 100858880), (4, 50429440), (5, 40343552), (8, 25214720), (10, 20171776), (16, 12607360), (20, 10085888), (32, 6303680), (40, 5042944), (64, 3151840), (80, 2521472), (128, 1575920), (160, 1260736), (256, 787960), (320, 630368), (512, 393980), (640, 315184), (1024, 196990), (1280, 157592), (2048, 98495), (2560, 78796), (5120, 39398), (10240, 19699)]