28143990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{14891}}^1$

素因数の和:14914

約数の個数: 64

約数和(自身を含む): 85777920

約数和(自身を除く): 57633930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 14891, 29782, 44673, 74455, 89346, 104237, 134019, 148910, 208474, 223365, 268038, 312711, 402057, 446730, 521185, 625422, 670095, 804114, 938133, 1042370, 1340190, 1563555, 1876266, 2010285, 2814399, 3127110, 4020570, 4690665, 5628798, 9381330, 14071995, 28143990]

約数ペア:

[(1, 28143990), (2, 14071995), (3, 9381330), (5, 5628798), (6, 4690665), (7, 4020570), (9, 3127110), (10, 2814399), (14, 2010285), (15, 1876266), (18, 1563555), (21, 1340190), (27, 1042370), (30, 938133), (35, 804114), (42, 670095), (45, 625422), (54, 521185), (63, 446730), (70, 402057), (90, 312711), (105, 268038), (126, 223365), (135, 208474), (189, 148910), (210, 134019), (270, 104237), (315, 89346), (378, 74455), (630, 44673), (945, 29782), (1890, 14891)]