28366715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 39137280

約数和(自身を除く): 10770565

約数列:

[1, 5, 13, 19, 65, 95, 103, 223, 247, 515, 1115, 1235, 1339, 1957, 2899, 4237, 6695, 9785, 14495, 21185, 22969, 25441, 55081, 114845, 127205, 275405, 298597, 436411, 1492985, 2182055, 5673343, 28366715]

約数ペア:

[(1, 28366715), (5, 5673343), (13, 2182055), (19, 1492985), (65, 436411), (95, 298597), (103, 275405), (223, 127205), (247, 114845), (515, 55081), (1115, 25441), (1235, 22969), (1339, 21185), (1957, 14495), (2899, 9785), (4237, 6695)]