161375840

素因数分解:

$2^5\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2207}}^1$

素因数の和:2679

約数の個数: 48

約数和(自身を含む): 382257792

約数和(自身を除く): 220881952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 457, 914, 1828, 2207, 2285, 3656, 4414, 4570, 7312, 8828, 9140, 11035, 14624, 17656, 18280, 22070, 35312, 36560, 44140, 70624, 73120, 88280, 176560, 353120, 1008599, 2017198, 4034396, 5042995, 8068792, 10085990, 16137584, 20171980, 32275168, 40343960, 80687920, 161375840]

約数ペア:

[(1, 161375840), (2, 80687920), (4, 40343960), (5, 32275168), (8, 20171980), (10, 16137584), (16, 10085990), (20, 8068792), (32, 5042995), (40, 4034396), (80, 2017198), (160, 1008599), (457, 353120), (914, 176560), (1828, 88280), (2207, 73120), (2285, 70624), (3656, 44140), (4414, 36560), (4570, 35312), (7312, 22070), (8828, 18280), (9140, 17656), (11035, 14624)]