55807220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2539}}^1$

素因数の和:2712

約数の個数: 48

約数和(自身を含む): 134843520

約数和(自身を除く): 79036300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 2539, 3140, 4396, 5078, 5495, 10156, 10990, 12695, 17773, 21980, 25390, 35546, 50780, 71092, 88865, 177730, 355460, 398623, 797246, 1594492, 1993115, 2790361, 3986230, 5580722, 7972460, 11161444, 13951805, 27903610, 55807220]

約数ペア:

[(1, 55807220), (2, 27903610), (4, 13951805), (5, 11161444), (7, 7972460), (10, 5580722), (14, 3986230), (20, 2790361), (28, 1993115), (35, 1594492), (70, 797246), (140, 398623), (157, 355460), (314, 177730), (628, 88865), (785, 71092), (1099, 50780), (1570, 35546), (2198, 25390), (2539, 21980), (3140, 17773), (4396, 12695), (5078, 10990), (5495, 10156)]