87871860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{937}}^1$

素因数の和:1473

約数の個数: 72

約数和(自身を含む): 267341256

約数和(自身を除く): 179469396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 521, 937, 1042, 1563, 1874, 2084, 2605, 2811, 3126, 3748, 4685, 4689, 5210, 5622, 6252, 7815, 8433, 9370, 9378, 10420, 11244, 14055, 15630, 16866, 18740, 18756, 23445, 28110, 31260, 33732, 42165, 46890, 56220, 84330, 93780, 168660, 488177, 976354, 1464531, 1952708, 2440885, 2929062, 4393593, 4881770, 5858124, 7322655, 8787186, 9763540, 14645310, 17574372, 21967965, 29290620, 43935930, 87871860]

約数ペア:

[(1, 87871860), (2, 43935930), (3, 29290620), (4, 21967965), (5, 17574372), (6, 14645310), (9, 9763540), (10, 8787186), (12, 7322655), (15, 5858124), (18, 4881770), (20, 4393593), (30, 2929062), (36, 2440885), (45, 1952708), (60, 1464531), (90, 976354), (180, 488177), (521, 168660), (937, 93780), (1042, 84330), (1563, 56220), (1874, 46890), (2084, 42165), (2605, 33732), (2811, 31260), (3126, 28110), (3748, 23445), (4685, 18756), (4689, 18740), (5210, 16866), (5622, 15630), (6252, 14055), (7815, 11244), (8433, 10420), (9370, 9378)]