29127920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4091}}^1$

素因数の和:4193

約数の個数: 40

約数和(自身を含む): 68500080

約数和(自身を除く): 39372160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 4091, 7120, 8182, 16364, 20455, 32728, 40910, 65456, 81820, 163640, 327280, 364099, 728198, 1456396, 1820495, 2912792, 3640990, 5825584, 7281980, 14563960, 29127920]

約数ペア:

[(1, 29127920), (2, 14563960), (4, 7281980), (5, 5825584), (8, 3640990), (10, 2912792), (16, 1820495), (20, 1456396), (40, 728198), (80, 364099), (89, 327280), (178, 163640), (356, 81820), (445, 65456), (712, 40910), (890, 32728), (1424, 20455), (1780, 16364), (3560, 8182), (4091, 7120)]