311930420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1\times {\mathrm{503}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 665013888

約数和(自身を除く): 353083468

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 307, 404, 503, 505, 614, 1006, 1010, 1228, 1535, 2012, 2020, 2515, 3070, 5030, 6140, 10060, 31007, 50803, 62014, 101606, 124028, 154421, 155035, 203212, 254015, 308842, 310070, 508030, 617684, 620140, 772105, 1016060, 1544210, 3088420, 15596521, 31193042, 62386084, 77982605, 155965210, 311930420]

約数ペア:

[(1, 311930420), (2, 155965210), (4, 77982605), (5, 62386084), (10, 31193042), (20, 15596521), (101, 3088420), (202, 1544210), (307, 1016060), (404, 772105), (503, 620140), (505, 617684), (614, 508030), (1006, 310070), (1010, 308842), (1228, 254015), (1535, 203212), (2012, 155035), (2020, 154421), (2515, 124028), (3070, 101606), (5030, 62014), (6140, 50803), (10060, 31007)]