28037505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2557}}^1$

素因数の和:2625

約数の個数: 32

約数和(自身を含む): 48622464

約数和(自身を除く): 20584959

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 2193, 2557, 3655, 7671, 10965, 12785, 38355, 43469, 109951, 130407, 217345, 329853, 549755, 652035, 1649265, 1869167, 5607501, 9345835, 28037505]

約数ペア:

[(1, 28037505), (3, 9345835), (5, 5607501), (15, 1869167), (17, 1649265), (43, 652035), (51, 549755), (85, 329853), (129, 217345), (215, 130407), (255, 109951), (645, 43469), (731, 38355), (2193, 12785), (2557, 10965), (3655, 7671)]