280423312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{7793}}^1$

素因数の和:7987

約数の個数: 40

約数和(自身を含む): 588571704

約数和(自身を除く): 308148392

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 692, 1384, 2249, 2768, 4498, 7793, 8996, 15586, 17992, 31172, 35984, 62344, 101309, 124688, 202618, 405236, 810472, 1348189, 1620944, 2696378, 5392756, 10785512, 17526457, 21571024, 35052914, 70105828, 140211656, 280423312]

約数ペア:

[(1, 280423312), (2, 140211656), (4, 70105828), (8, 35052914), (13, 21571024), (16, 17526457), (26, 10785512), (52, 5392756), (104, 2696378), (173, 1620944), (208, 1348189), (346, 810472), (692, 405236), (1384, 202618), (2249, 124688), (2768, 101309), (4498, 62344), (7793, 35984), (8996, 31172), (15586, 17992)]