28617320

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5147}}^1$

素因数の和:5297

約数の個数: 32

約数和(自身を含む): 64864800

約数和(自身を除く): 36247480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5147, 5560, 10294, 20588, 25735, 41176, 51470, 102940, 205880, 715433, 1430866, 2861732, 3577165, 5723464, 7154330, 14308660, 28617320]

約数ペア:

[(1, 28617320), (2, 14308660), (4, 7154330), (5, 5723464), (8, 3577165), (10, 2861732), (20, 1430866), (40, 715433), (139, 205880), (278, 102940), (556, 51470), (695, 41176), (1112, 25735), (1390, 20588), (2780, 10294), (5147, 5560)]